УСТРОЙСТВО ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ

Раскрыто устройство (10, 110) защиты от перенапряжений для прибора наружного освещения, включающее в себя соединение (23А, 123А) фазы, соединение (23В, 123B) нейтрали и соединение (23C, 123C) заземления. Первый варистор (42) и второй варистор (43) могут иметь последовательное электрическое соединение друг с другом между соединениями фазы и нейтрали, а третий варистор (41) имеет электрическое соединение между соединениями фазы и нейтрали в параллельной конфигурации с первым варистором и вторым варистором. Ограничитель (46, 146) перенапряжения также может иметь электрическое соединение между соединением (23C, 123C) заземления и последовательным соединением между первым варистором и вторым варистором. Технический результат - обеспечение защиты от перенапряжений в осветительных приборах. 13 з.п. ф-лы, 5 ил.

КОНСТРУКЦИЯ ДЛЯ ВЫПОЛНЕНИЯ ТОЧКИ ТЕПЛОВОГО РАСЦЕПЛЕНИЯ

Изобретение относится к устройству для выполнения точки теплового расцепления, состоящему из разделительной полосы, которая подвергается воздействию силы предварительного натяжения, из электрического средства, производящего тепловую энергию, с контактной поверхностью, в частности, выполненного как элемент защиты от перенапряжения или как составная часть такого элемента, а также из соединительного средства, образующего единый массив материала, при определенном нагревании изменяющего свое агрегатное состояние, в частности, из припоя. Между разделительной полосой и контактной поверхностью электрического средства имеется деталь-адаптер, причем деталь-адаптер одной стороной с чисто геометрическим и/или силовым замыканием соединяется с контактной поверхностью, а с другой стороны образует соединение с разделительной полосой в виде единого массива материала, разделяемое термическим путем. Техническим результатом является повышение качества неразъемного соединения. 8 з.п. ф-лы, 9 ил.

РАЗРЯДНИК ДЛЯ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ

Изобретение относится к области электротехники. Разрядник для защиты от перенапряжений имеет корпус, а также два выходящих из корпуса токоподвода и, по меньшей мере, один расположенный в корпусе разрядника шайбообразный варистор с двумя предусмотренными на торцевых поверхностях местами контактирования. Каждое из мест контактирования находится в электрически проводящем соединении с одним из обоих токоподводов. Варистор содержит неметаллизированную активную часть, а также два упругих контактных элемента, прижимаемых посредством жестких токопроводящих элементов к неметаллизированным торцевым поверхностям активной части с образованием электрического контакта. Торцевые поверхности могут быть не плоскопараллельными, а выпуклыми или вогнутыми или при желательном плоскопараллельном выполнении образовывать между собой небольшой угол. Технический результат заключается в том, что упругие контактные элементы и неметаллизированные торцевые поверхности обеспечивают хорошее контактирование даже при неполностью ...

ОПОРНО-СОЕДИНИТЕЛЬНЫЙ УЗЕЛ ДЛЯ ВСТАВНОГО РАЗРЯДНИКА ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ

Изобретение относится к опорно-соединительному узлу для вставного разрядника перенапряжений. Опорно-соединительный узел содержит основание и U-образную фасонную деталь, соединенную с основанием, которая на обращенных друг к другу внутренних сторонах полок имеет направляющие и/или фиксирующие средства, а также содержит установленный в основании выключатель дистанционной связи и сигнализации с ведущими наружу подключениями, а также содержит соединенное с выключателем дистанционной связи и сигнализации исполнительное устройство, содержащее толкатель, который доступен через выемку в участке соединения полок U-образной фасонной детали, в основании опорно-соединительного узла расположена кулисоподобная, пазообразная направляющая, которая имеет непрерывно дуговидную или дугообразно-линейную форму, направляющая проходит между толкателем и выключателем дистанционной связи и сигнализации, а в направляющей вставлена управляющая шина, выполненная примерно в форме кулисы, причем управляющая шина выполнена ...

УСТРОЙСТВО ДЛЯ ТЕЛЕКОНТРОЛЯ СОСТОЯНИЯ ПО КРАЙНЕЙ МЕРЕ ОДНОПОЛЮСНОЙ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЯ

Использование: в области электротехники. Технический результат заключается в повышении надежности. Устройство содержит держатель (1) и, по крайней мере, один вставной защитный элемент (2), которые снабжены механическими средствами для детектирования изменения состояния каждого вставного защитного элемента (2), держатель (1), кроме этого, снабжен средствами для изменения состояния выключателя (4), выключатель (4) снабжен средствами для подключения к линии дальней связи для передачи сигнала об изменении его состояния. В держателе (1) для каждого вставного защитного элемента (2) имеется напружиненный позиционирующий элемент (5), индикаторный конец (5 с) которого в состоянии подключения защиты от перенапряжения к электросети прикасается к подвижной части (2а) в соответствующем вставном защитном элементе (2), при этом каждый позиционирующий элемент (5) на своем втором конце снабжен фланцем (5b), между фланцем (5b) и соответствующим вставным защитным элементом (2) расположен свободный конец сигнализационной ...

ОГРАНИЧИТЕЛЬ ПЕРЕНАПРЯЖЕНИЙ

Полезная модель относится к электротехнике и может быть использована в ограничителях перенапряжений, например, комплектных распределительных устройств с газовой изоляцией. Техническим результатом заявленной полезной модели является уменьшение габарит по высоте. Сущность полезной модели заключается в том, что в ограничителе перенапряжений содержится блок последовательно соединенных резисторов, его верхний и нижний контакты, герметичный металлический заземленный корпус, заполненный электроизоляционным газом под избыточным давлением, с нижним металлическим фланцем и заземляющим выводом блока резисторов, с верхним фланцем в виде опорного изолятора с контактным выводом высокого напряжения в виде металлической бобышки изолятора, а также разъединитель, содержащий первый неподвижный контакт, соединенный электрически с бобышкой изолятора, второй неподвижный контакт, установленный на блоке резисторов, и подвижный контакт, установленный внутри первого неподвижного контакта с возможностью перемещения ...

НЕЛИНЕЙНЫЙ ОГРАНИЧИТЕЛЬ ПЕРЕНАПРЯЖЕНИЙ

Полезная модель относится к области высоковольтной техники, а именнок электрическим сетям среднего и высокого классов напряжения, и может быть использована в устройствах для защиты электрооборудования и электрических сетей от атмосферных и внутренних перенапряжений, преимущественно в ограничителях перенапряжений нелинейных (ОПН).Техническим результатом предлагаемого решения является упрощение конструкции и повышение надежности работы устройства.Для достижения заявленного технического результата в нелинейном ограничителе перенапряжения, содержащем установленную в защитном корпусе 1 колонку последовательно соединенных высоконелинейных варисторов 2, предложена новая схема защиты устройства от перенапряжений. В схему ОПН введен, по крайней мере, один газовый разрядник 4, который установлен параллельно варисторам 2 и соединен с ними через электрод 5.Электроды выполнены в виде круговой пластины и соединены с газовыми разрядниками с помощью болтового били заклепочного соединения.Количество газовых ...

РАЗРЯДНИК ДЛЯ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ

Изобретение касается разрядника (1) для защиты от перенапряжений, имеющего трубчатый корпус (2), соединенную с одним концом корпуса (2) концевую арматуру (3), расположенный в корпусе (2) варисторный блок и расположенный в области концевой арматуры (3) опорный элемент (4), который имеет прилегающее к корпусу (2) опорное кольцо (5), имеющее конус (6), и прижимное кольцо (7), которое имеет соответствующий конусу (6) ответный конус (8). При этом конус (6) притянут к ответному конусу (8) таким образом, что опорное кольцо (5) без возможности смещения прижато к корпусу (2). Технический результат - создание разрядника с высокой изгибной прочностью, в котором опорный элемент (4) может вставляться и снова извлекаться после монтажа варисторного блока. 5 з.п. ф-лы, 4 ил.

ВСТАВНОЙ ЭЛЕКТРИЧЕСКИЙ АППАРАТ, В ЧАСТНОСТИ РАЗРЯДНИК ЛЯ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ, ВЫСОКОВОЛЬТНАЯ УСТАНОВКА С ЭЛЕКТРИЧЕСКИМ АППАРАТОМ И СПОСОБ ЕЕ ИЗГОТОВЛЕНИЯ

... 1. Вставной электрический аппарат, в частности разрядник (А) для защиты от перенапряжений, содержащий выполненный осесимметричным корпус (1) с проходящей в направлении вставки осью (7), средство для закрепления корпуса (1) аппарата на корпусе (30) высоковольтной установки (Н), осесимметричную активную часть (6) с аксиально проходящей цепью тока, содержащей вставной контакт (8), заземляющий вывод (9) и включенный между ними нелинейный резистивный элемент (10), и осесимметричный изолятор (13), который охватывает нелинейный резистивный элемент (10) и электрическое соединение (11) с вставным контактом (8) и образует изолирующий конус (13), отличающийся тем, что крепежное средство отформовано в корпусе (1) аппарата, при этом активная часть (6) установлена в корпусе (1) аппарата с возможностью перемещения в осевом направлении и удерживается от образования вставного соединения относительно корпуса (1) аппарата посредством усилия натяжения. 2. Аппарат по п.1, отличающийся тем, что изолятор (13) ...

УСТРОЙСТВО ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ С МЕХАНИЧЕСКИМ РАЗМЫКАТЕЛЕМ, СРАБАТЫВАЮЩИМ ПРИ ТЕРМИЧЕСКИХ ПЕРЕГРУЗКАХ

... 1. Устройство защиты от перенапряжений с механическим размыкателем, срабатывающим при термической перегрузке и содержащим соединительные элементы, выполненные с возможностью перемещения посредством подпружиненного или предварительно напряженного ползуна из замкнутого положения в токопрерывающее или разделяющее потенциалы положение, причем соединительные элементы зафиксированы в замкнутом положении пайкой или клеем, расплавляющимся под действием температуры, отличающееся тем, что ! соединительные элементы представляют собой пару разветвляющих ток металлических дужек, у которых оконечности, направленные к узлу защиты от перенапряжений, проходят параллельно друг другу, а середина которых принимает соответствующий контактный язычок узла защиты от перенапряжений; ! оконечности дужек, обращенные в противоположную узлу защиты от перенапряжений сторону, охватывают свободное пространство, соединяются между собой и содержат участок для подключения внешних соединительных деталей или соединительных ...

ОГРАНИЧИТЕЛЬ ПЕРЕНАПРЯЖЕНИЙ КЛЕТОЧНОЙ КОНСТРУКЦИИ

... 1. Ограничитель перенапряжений, содержащий: ! по меньшей мере, один варисторный блок (1); ! по меньшей мере, один концевой соединительный элемент (3); ! по меньшей мере, один усиливающий элемент (9), который прочно закрепляет варисторный блок (1) на концевом соединительном элементе (3); ! по меньшей мере, один фиксирующий элемент (27), который прочно закрепляет усиливающий элемент (9) на концевом соединительном элементе (3), ! отличающийся тем, что фиксирующий элемент (27) содержит, по меньшей мере, один край (29), который врезается в усиливающий элемент (9). ! 2. Ограничитель по п.1, отличающийся тем, что варисторный блок или блоки изготовлен(ы) из оксида металла, предпочтительно из ZnO. ! 3. Ограничитель по п.1, отличающийся тем, что концевой соединительный элемент (3) или концевые соединительные элементы (3) изготовлен(ы) из металла, предпочтительно из алюминия. ! 4. Ограничитель по п.1, отличающийся тем, что ограничитель перенапряжений содержит корпус (5) с экранами (7). ! 5. Ограничитель ...

ОГРАНИЧИТЕЛЬ НАПРЯЖЕНИЯ С ЗАЩИТОЙ ОТ ПЕРЕНАПРЯЖЕНИЯ

ВЕТРОЭНЕРГЕТИЧЕСКАЯ УСТАНОВКА

РАЗРЯДНИК ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ С РАСТЯЖИМОЙ МАНЖЕТОЙ

... 1. Разрядник защиты от перенапряжений, содержащий по меньшей мере два сжимающих колонку разрядника натяжных элемента и по меньшей мере одну манжету, которая охватывает по меньшей мере часть натяжных элементов в лежащей перпендикулярно средней оси разрядника защиты от перенапряжений плоскости так, что охватываемые натяжные элементы фиксированы в радиальном направлении, отличающийся тем, что манжета прилегает снаружи к колонке разрядника защиты от перенапряжений и имеет радиальные выпучивания, которые служат для размещения окруженных натяжных элементов и фиксации в тангенциальном направлении относительно средней оси разрядника защиты от перенапряжений.2. Разрядник защиты от перенапряжений по п. 1, отличающийся тем, что по меньшей мере в одной плоскости поперечного сечения колонки разрядника введен цилиндрический промежуточный элемент, при этом боковая поверхность промежуточного элемента имеет радиальные углубления, и лежащие между выпучиваниями манжеты вмятины входят в углубления в промежуточном ...

ЭЛЕМЕНТ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЯ

... 1. Элемент защиты от перенапряжения с корпусом, с выводами (2, 3) для электрического подключения элемента (1) защиты от перенапряжения к подлежащей защите токо- или сигналопроводящей линии, с двумя расположенными внутри корпуса и включенными электрически параллельно варисторами (4, 5) и, по меньшей мере, с частично расположенным между варисторами (4, 5) центральным электродом (6), причем корпус имеет две состоящие из металла, электрически соединенные друг с другом половины (7, 8) корпуса, причем центральный электрод (6) изолирован от половин (7, 8) корпуса и своими противолежащими друг другу сторонами соответственно электрически соединен с первой присоединительной областью (9) варистора (4, 5), и, причем оба варистора (4, 5) и центральный электрод (6) расположены по типу сэндвича между обеими половинами (7, 8) корпуса,отличающийся тем, чтоодна половина (8) корпуса выполнена в виде крышки, которая имеет покровный участок (10) и утапливаемый участок (11) зацепления, причем в соединенном состоянии ...

МАЛОГАБАРИТНОЕ УСТРОЙСТВО ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ С ОБЩИМ/ДИФФЕРЕНЦИРОВАННЫМ РЕЖИМОМ РАБОТЫ

... 1. Устройство (1) защиты от перенапряжений, предназначенное для защиты в обычном и дифференцированном режимах, содержащее, по меньшей мере, один электрически изолированный корпус (2), предназначенный для установки в нем, по меньшей мере, одного электрического бинома, образованного варистором, называемым фаза-земля (РТ), с клеммой (р) фазы и клеммой (t) земли, установленным между первой защищаемой фазой (L1) и землей (Т), и варистором, называемым фаза-нейтраль (PN), с клеммой (р) фазы и клеммой (n) нейтрали, установленным между первой защищаемой фазой (L1) и нейтралью (N), при этом варисторы фаза-земля (РТ) и фаза-нейтраль (PN) установлены рядом друг с другом внутри корпуса (2), образуя монтажный бином (3), отличающееся тем, что устройство (1) защиты содержит средство (20) электрической изоляции, предназначенное для электрической изоляции клеммы (t) земли варистора фаза-земля (PT) от клеммы (n) нейтрали варистора фаза-нейтраль (PN).2. Устройство по п.1, отличающееся тем, что средство (20 ...

Разрядник для защиты от перенапряжений

... 1. РАЗРЯДНИК ДЛЯ ЗАЩИТЫ ОТ ПЕРЕНАПРЯЖЕНИЙ, содержащий корпус, внутри которого расположены по меньшей мере три параллельных колонки из унифицированных разрядных и изоляцио ных опорных элементов, установленных меяоду присоединительными токопроводя1цими элементами, снабженными средствами крепления в направлении сосед них колонок, и поперечные разрядные элементы, размещенные между указанны ми присоединительными элементами соседних колонок в параллельных попереч ных плоскостях, причем все разрядные элементы соединены в последовательную цепь, а опорные разрядные элементы колонок расположены попеременно в разных колонках, отличающийс я тем, что, с целью уменьшения габаритов, повьшения быстродействия и механической прочности и обеспече )ния управляемости, число поперечных разрядных элементов в каждой указанной поперечной плоскости выбрано на единицу меньшим числа колонок, а поперечные разряднЕ е элементы образуют разомкнутые витки, расположенные друг над Другом, последовательное соединение которых ...

SPANNUNGSKLEMMSCHALTUNG FÜR FESTKÖRPER-LEISTUNGSSCHALTER

Einzigartige Systeme, Verfahren, Techniken und Vorrichtungen zum Schutz von Festkörper-Leistungsschaltern werden offenbart. Eine beispielhafte Ausführungsform ist ein Festkörper-Leistungsschalter mit eine primäre Schaltvorrichtung mit einem ersten Anschluss und einem zweiten Anschluss und eine Spannungsklemmschaltung, die parallel zu der primären Schaltvorrichtung gekoppelt ist. Die Spannungsklemmschaltung enthält einen Metalloxid-Varistor (MOV), der in Reihe zwischen den ersten Anschluss und eine Hilfs-Halbleitervorrichtung geschaltet ist, wobei die Hilfs-Halbleitervorrichtung so angeordnet ist, dass sie den MOV selektiv mit dem zweiten Anschluss koppelt, und eine Bypass-Schaltung, die zwischen den ersten Anschluss und die Hilfs-Halbleitervorrichtung geschaltet ist.

Schutzimpedanz für eine netzspannungsgespeiste elektronische Schaltung

A CAPPED RESILIENT ELECTRICAL HOUSING AND ARRESTER COMPRISING SUCH A HOUSING

Überspannungsableiter mit wenigstens einem Zugelement

UEberspannungsableiter

UEBERSPANNUNGSABLEITER.

Schutzvorrichtung gegen Stromquellenüberspannung zur Verwendung für eine Leiterplatte

Schutzvorrichtung gegen Stromquellenüberspannung zur Verwendung für eine Leiterplatte, dadurch gekennzeichnet, dass diese ein Isolationsgehäuse sowie einen innerhalb davon vorgesehenen spannungsempfindlichen elektrischen Widerstand (4) umfasst, wobei das vorstehend bezeichnete Isolationsgehäuse ein oberes Gehäuse (1) und ein unteres Gehäuse (2) umfasst, wobei das obere Gehäuse (1) und das untere Gehäuse (2) jeweils mit einem Sichtfenster versehen sind, wobei das obere Gehäuse (1) das untere Gehäuse (2) abdeckt, so dass die Position des Sichtfensters sich zur Anzeige eines Lösestatus deckt, wobei an dem unteren Gehäuse (2) an den beiden gegenüber befindlichen Seitenwänden vertikal zu der Seitenwand mit vorgesehenem Sichtfenster elektrische Pol-Durchführungsöffnungen vorgesehen sind, wobei außen an den beiden Seitenwänden außerdem jeweils eine Positionsbegrenzungsrille, eine Stromleiste (5), eine Lichtbogenseparationsplatte (6) und eine Feder (7) vorgesehen sind, wobei an der Lichtbogenseparationsplatte ...

Koppelisolator

Überspannungsableiteranordnung

Eine Überspannungsableiteranordnung weist ein Varistorelement (3) auf. Das Varistorelement (3) ist Teil eines Spannstapels, welcher endseitig von einem ersten und einem zweiten Armaturkörper (1, 1a, 2) begrenzt ist. Mittels zumindest eines Verspannelementes (4) sind die Armaturkörper (1, 1a, 2) gegeneinander verspannt. Das Verspannelement ist mittels eines verkeilten Klemmsitzes in einer Ausnehmung (6) verspannt. Der Spannstapel weist quer zur Verspannrichtung zwischen den Armaturkörpern (1, 1a, 2) zumindest eine umlaufende Biegenut (11a, 11b, 11c, 11d, 11e, 11f) auf.

Electrical varistor protection unit for protection of e.g. inverter of solar plant against indirect lightning strike and overvoltage, has indication units comprising visible window and display, and lever lying behind display

The unit (1) has a spring (5) i.e. screwable pressure spring, supported at a housing (3) and a springy prestressed lever (4), which is made of conductor board material. Separation indication units are provided for power guiding connection wires (10, 12) or strands of a varistor (2) and comprise a visible window (8) and a color display (9) at the lever. The display is separated from the housing. The lever lies behind the display in the housing in a swiveling position of the lever. The window is arranged in the housing, where an end of the housing lies opposite to the wires.

Electrical overvoltage diverter module - uses metal oxide varistor as voltage limiting device in parallel with overvoltage diverter

The module comprises a gas-filled overvoltage diverter (1) and a parallel voltage limiting device, with a response voltage above that of the overvoltage diverter. The latter comprises a tubular ceramic isolator (4) with electrodes (2,3) at its opposite ends, the voltage limiting device comprising a metal oxide varistor (6) in the form of a hollow cylinder which metallised at its ends. The ceramic isolator, the associated electrodes and the varistor have the same outer dia. and are arranged in a common metal sleeve (9) via centring elements (12) integral with the latter. ADVANTAGE - Minimises negative effect of voltage limiting varistor on response characteristic of overvoltage diverter and protected against humidity and dampness effects and whole is of simple construction for ease of prodn.

AN EINER ÜBERTRAGUNGSLEITUNG BEFESTIGTEN SCHLAGABLEITER MIT EINER STABILISIERENDEN VORRICHTUNG

Überspannungsableiter

Der Überspannungsableiter weist ein zwischen zwei Anschlußarmaturen (1, 2) angeordnetes, axialsymmetrisches Aktivteil (2) auf. Dieses Aktivteil (2) enthält übereinandergestapelte zylinderförmige Varistorelemente (12) sowie ein im Ableiteraktivteil (2) zwischen zwei aufeinanderfolgenden Varistorelementen (12) angeordnetes axialsymmetrisches Verbindungselement (13) aus elektrisch leitendem Material. In das Verbindungselement (13) sind mindestens vier in Umfangsrichtung gleichmäßig um die Achse verteilte Lagerstellen (16, 16') eingeformt. Zwei erste (16) der Lagerstellen stützen jeweils eine von zwei ersten Schlaufen (15) ab, welche das Verbindungselement (13) und auf dem Verbindungselement (13) aufliegende Varistorelemente (12) mit Kontaktkraft beaufschlagen. Zwei zweite (16') der Lagerstellen stützen jeweils eine von zwei zweiten Schlaufen (15) ab, welche das Verbindungselement (13) und unter dem Verbindungselement befindliche Varistorelemente (12) mit Kontaktkraft beaufschlagen. DOLLAR ...

Oberflächenmontierbares Halbleiterbauelement und Verfahren zu dessen Herstellung

Es wird ein oberflächenmontierbares Halbleiterbauelement, mit einem optoelektronischen Halbleiterchip (10), einer Vielzahl von ersten Kontaktelementen (31), einer Vielzahl von zweiten Kontaktelementen (32), und einem Formkörper (40) angegeben. Erfindungsgemäß ist vorgesehen, dass die Vielzahl von ersten Kontaktelementen (31) mit einer ersten Halbleiterschicht (21) und die Vielzahl von zweiten Kontaktelementen (32) mit einer zweiten Halbleiterschicht (22) des optoelektronischen Halbleiterchips (10) elektrisch leitend verbunden ist; der Formkörper (40) den optoelektronischen Halbleiterchip (10) zumindest teilweise umgibt; das Halbleiterbauelement eine Montagefläche (50) aufweist, die zumindest stellenweise durch eine Oberfläche des Formkörpers (40) gebildet ist; und die Vielzahl von ersten und die Vielzahl von zweiten Kontaktelementen im Bereich der Montagefläche durch den Formkörper hindurchragen. Es wird außerdem ein Verfahren zur Herstellung des oberflächenmontierbaren Halbleiterbauelements ...

MIT EINER VARISTORSCHEIBE VERSEHBARE VORRICHTUNG ZUM ÜBERSPANNUNGSSCHUTZ

UEberspannungsableiter mit spannungsabhaengigen Widerstandsbloecken

ÜBERSPANNUNGSABLEITER MIT EINEM ABLEITELEMENT

Überspannungsableiter

Die Erfindung bezieht sich auf einen Überspannungsableiter (10) mit mindestens einem Widerstandselement (90, 91, 92), und einem Käfig (80), in dem das mindestens eine Widerstandselement (90, 91, 92) angeordnet ist, wobei der Käfig (80) einen oberen Halter (20), einen unteren Halter (40) und mindestens drei Isolierstangen (70) umfasst, die jeweils mit ihrem einen Stabende von dem oberen Halter (20) und mit ihrem anderen Stabende von dem unteren Halter (40) gehalten werden. Erfindungsgemäß ist vorgesehen, dass der obere Halter (20) und der untere Halter (40) derart ausgestaltet sind, dass sie für zumindest eine der Isolierstangen (70) relativ zu den beiden Haltern jeweils mindestens zwei unterschiedliche Positionen ermöglichen und die zumindest eine Isolierstange (70) relativ zu den beiden Haltern (20, 40) unterschiedlich positionierbar ist.

Koaxialer Überspannungsableiter

Koaxialer Überspannungsableiter

VERFAHREN ZUR HERSTELLUNG EINER GECRIMPTEN ANORDNUNG UND VERBUNDENE ANORDNUNG UND VORRICHTUNG

Überspannungsschutzelement

Überspannungsschutzelement mit einem Gehäuse (2), mit mindestens zwei Anschlüssen (3, 4) zum elektrischen Anschluss des Überspannungsschutzelements (1) an die zu schützenden Strom- oder Signalpfade, und mit einem im Inneren des Gehäuses (2) angeordneten Ableiter (5), dadurch gekennzeichnet, dass das Gehäuse (2) zwei aus Metall bestehende, elektrisch miteinander verbundene Gehäusehalbschalen (7, 8) aufweist, dass mindestens eine der beiden Gehäusehalbschalen (7, 8) elektrisch mit einem Anschlussbereich (9, 10) des Ableiters (5) verbunden ist, dass eine von den beiden Gehäusehalbschalen (7, 8) elektrisch isolierte Mittelelektrode (11) und ein Isolierkörper innerhalb des Gehäuses (2) angeordnet sind, wobei der Isolierkörper zwischen der Mittelelektrode (11) und der zweiten Gehäusehalbschale (8) angeordnet ist, und dass der erste Anschlussbereich (9) des Ableiters (5) mit der ersten Gehäusehalbschale (7) und der zweite Anschlussbereich (12) des Ableiters (5) mit der Mittelelektrode (11) elektrisch ...

Stossspannungsschutz-Schaltungsleiterplatten und Herstellungsverfahren

Leiterplatten, die einen eingebauten Stoßspannungsschutz aufweisen.

Überspannungsschutzgerät mit thermischer Abtrennvorrichtung

Überspannungsschutzgerät mit thermischer Abtrennvorrichtung und Fehleranzeige sowie mehreren scheibenförmigen Varistoren (3), wobei jedem Ableitpfad mindestens ein Varistor (3) zugeordnet ist und die thermischen Trennstellen in Reihe zum jeweiligen Varistor (3) liegen, einem Gerätegehäuse (1) mit Kammern zur Aufnahme der Varistoren (3) und einem schwenkbeweglich gelagerten Hebel (10) mit einer Anzeigefläche (11), die im Bereich eines Gehäusefensters befindlich ist, durch den Gehäuseboden (5) reichende Steckanschlüsse (6), um eine elektrische Verbindung zu einem Basisteil herzustellen, wobei federvorgespannte Bügel ausgebildet sind, welche jeweils mit einem niedrigschmelzenden Lot elektrisch und mechanisch mit dem jeweiligen Varistor (3) verbunden sind, dadurch gekennzeichnet, dass die federvorgespannten Bügel durch ein einziges Stanz-Biegeteil gebildet sind, welches ausgehend von einem gemeinsamen Verbindungsschenkel (15) fingerartige Fortsätze (9) entsprechend der Anzahl der Trennstellen ...

Überspannungsableiter

Es wird ein Überspannungsableiter angegeben, der ein Gehäuse mit einem rohrförmigen Isolierkörper (1) und wenigstens zwei Elektroden (2, 2') aufweist. Auf der Innenseite (3) des Isolierkörpers (1) ist wenigstens in Teilbereichen der Innenseite (3) eine Schichtenfolge (4) angeordnet, die wenigstens eine elektrisch leitende oder halbleitende Schicht (5), wenigstens eine elektrisch leitende Schicht (6) und wenigstens eine isolierende Schicht (7) umfasst.

Improvements in lightning arresters

... 635,675. Protective arrangements. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, and TEZNER, S. March 24, 1948, No. 8613. Convention date, March 26, 1947. [Class 38 (iv)] Lightning arresters for medium and high voltages comprising seriesconnected spark - gaps located alternately on opposite sides of the axis and voltage dependent resistances, have elements arranged in parallel connection with each of the spark-gaps which constitute both capacitances, whereby the voltage distribution over the gaps is maintained during normal lowfrequency conditions, and resistances, which in association with the capacitances to earth determine the distribution during highfrequency or steep wavefront conditions. These elements are constituted by sectors 18, 19 secured to metal plates carrying the gap electrodes 13, the sectors being of semi-conductive material having relatively, high resistances, such as a synthetic resin in which conductive material is dispersed. The metal plates are separated ...

Resistor for high voltage

... 1,094,524. Resistors. ALLM€NNA SVENSKA ELEKTRISKA A.B. March 10, 1965 [March 12, 1964; Jan. 27, 1965], No. 10121/65. Heading H1S. A high voltage resistor comprises a number of disc coils 1 of resistance strip separated by insulating discs 2 (Fig. 1), alternate pairs of disc coils being connected together at their inner and outer edges as shown to provide a non-inductive arrangement. The coil turns may be insulated with enamel, silicon lacquer, asbestos or glass fibre tape. Each coil may be a composite coil formed of an even number of layers of insulated turns connected in parallel, adjacent layers being wound in opposite directions (Figs. 3 and 4, not shown). The inner contact rings of the turns of alternate composite coils may have spring contact fingers by which they can each be connected to an adjacent coil.

Apparatus for reducing electrical fault voltages in electrical conductors

Apparatus for reducing surge voltages comprising at least one voltage surge suppressor arranged in a holder which has an insulating housing and connecting terminals for connection of external electrical conductors to the apparatus. A metallic foot is so formed on the insulating housing that it, together with an associated pressure member, enables the apparatus to be mounted and rigidly clamped by way of a screw bolt in the manner of a terminal block or the like on a protective earth collector rail. The foot is electrically connected with one terminal of the surge suppressor. The other terminal of the surge suppressor is connected with at least one connecting terminal. On rigidly clamping the apparatus to the collector rail, which at the same time serves as a carrier rail, the required connection between the surge suppressor and the protective ground is automatically produced. In addition to the surge suppressor, the insulating housing may also include at least one electric filter which ...

Varistor

APPARATUS FOR REDUCING ELECTRICAL FAULT VOLTAGES IN ELECTRICAL CONDUCTORS

HEAT TRANSFER SYSTEM FOR VOLTAGE SURGE ARRESTORS

Gapless surge arrester

A gapless surge arrester is disclosed herein and includes a porcelain outer casing and a stack of zinc oxide discs located within the casing for passing surge currents therethrough. Silicon dioxide, preferably sand, is provided between this stack in the casing for transferring heat from the discs to the porcelain outer casing as a result of the surge current and for absorbing fault energy where necessary by changing states.

Zinc-oxide surge arrester

A zinc-oxide surge arrester, in which a plurality of zinc-oxide elements each having a through hole at a central portion are stacked in such a manner that an insulating supporting rod having at least one fixed end is inserted in the through hole of each element, can increase the heat transfer area of the element and simplify the supporting structure.

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

SURGE DIVERTER WITH SEPARATING EQUIPMENT AND FLASHING DISPLAY

OVERVOLTAGE PROTECTION

SELFCOMPRESSING SURGE DIVERTER MODULE AND PROCEDURE FOR ITS PRODUCTION

COAXIAL SURGE DIVERTER

PROCEDURE FOR THE PRODUCTION OF A CRIMPED ARRANGEMENT AND CONNECTED ARRANGEMENT AND DEVICE

COMPACT ARRANGEMENT FOR MULTIPOLAR SURGE VOLTAGE CELEBRATIONS SURGE DIVERTERS AS WELL AS GEKAPAELTER SURGE DIVERTER FOR THIS

SURGE DIVERTER

MONITORING ARRANGEMENT AT A SURGE DIVERTER

SURGE DIVERTER ON RESISTOR BASIS, IN PARTICULAR FOR HIGH TENSIONS

WITH A CAP MISTAKE ELECTRICAL HOUSING FROM FLEXIBLE MATERIAL AND UEBERSPANNUNGSABLEITER WITH SUCH A HOUSING.

MOBILE CONNECTION PART FOR SURGE DIVERTERS.

PROCEDURE FOR THE PRODUCTION OF A LIGHTNING CONDUCTOR.

LIGHTNING CONDUCTOR ARRANGEMENT FOR THE PROTECTION OF CONDUCTIONS.

LIGHTNING PROTECTION DEVICE FOR CONDUCTIONS.

SURGE DIVERTER WITH MOBILE HOLDING FOR THE STABILIZATION OF ITS RESISTORS.

HOUSING FOR ELECTRICAL DEVICE, IN PARTICULAR FOR UEBERSPANNUNGSABLEITER, WITH AN ISOLATING FORM CASING.

ÜBERSPANNUNGSABLEITER-KABELSTECKTEIL-VERBINDUNG

SURGE DIVERTER

WITH A RESISTOR DISK VERSEHBARE DEVICE TO THE OVERVOLTAGE PROTECTION

SEALS CASING ON THE BASIS OF A FIBER-WELL-BEHAVED TAPING AND COMPOUND LIGHTNING CONDUCTORS AS APPLICATION.

SURGE DIVERTER WITH A STRUTTING ELEMENT

SURGE DIVERTER WITH A FROM THERMOPLASTIC MATERIAL MANUFACTURED HOUSINGS WITH AN EXTERIOR A COINED/SHAPED SURFACE

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

PROCEDURE FOR THE PRODUCTION OF A RESISTANCE, WHICH EXHIBITS A PTC POLYMERELEMENT

Method and apparatus for a surface-mountable device for prot ection against electrostatic damage to electronic components

SURGE ARRESTER

Active part of a surge arrester

A method of manufacturing a crimped assembly, and related apparatuses

Temperature monitoring of high voltage distribution system components

The present disclosure provides surge arrester units having one or a plurality of sensor assemblies within the surge arrester unit. The sensor assemblies include a first plate, a second plate, a heat absorption member positioned between the first and second plates, and a temperature assembly that senses the temperature of the heat absorption member and transmits the temperature.

Polymeric weathershed surge arrester and method

Enhanced varistor-based lighting arresters

Surge arrester with overvoltage sensitive grounding switch

Button protection device

STABILIZING DEVICE FOR A TRANSMISSION LINE-MOUNTED SURGE ARRESTER

The present invention relates to a line arrester (1), which is articulately suspended from a transmission or distribution network and on which a stabilizing device (5) is arranged. The stabilizing device (5) increases the mass-moment of inertia of the line arrster (1) so as to counteract movements of the line arrester (1) deviating from the vertical line. The stabilizing device (5) has a mass centre which substantially conforms to the vertical line which passes through the mass centre of the line arrester (1).

ELECTRICAL DEVICE CASING, NAMELY A LIGHTNING ARRESTER, INCORPORATING A MOULDED INSULATING ENVELOPPE

Un boîtier de dispositif électrique, en particulier de parafoudre, qui comporte une enveloppe externe cylindrique et une paroi interne toutes deux constituées de matériaux non conducteurs d'électricité. Une des extrémités de l'enveloppe est fermée tandis que l'autre est ouverte. Une électrode comprenant une portion principale interne au boîtier se prolonge à travers l'enveloppe jusqu'à l'extérieur de celle-ci. Des ancrages pour boulons sont prévus pour fixer le boîtier sur un support mécanique et pour monter à l'extrémité ouverte de l'enveloppe un dispositif de fermeture du boîtier. Le matériau constituant la paroi interne présente une étanchéité à l'humidité et assure une protection contre le bris de l'enveloppe par choc thermique causé par exemple par la production d'un arc électrique à l'intérieur du boîtier, tandis que le matériau constituant l'enveloppe cylindrique est un isolant synthétique capable de tenir une tension mécanique élevée. L'enveloppe est moulée sur la paroi interne ...

VOLTAGE NON-LINEAR RESISTOR AND ITS MANUFACTURE

VOLTAGE NON-LINEAR RESISTOR AND ITS MANUFACTURE A voltage non-linear resistor excellent in varistor voltage characteristics,lightning discharge current withstanding capability and life performance against applied voltage comprises a disclike voltage non-linear element and a thin insulating covering layer integrally provided on the side surface of said element. In the resistor according to the invention, said element comprises zinc oxides as main ingredient, 0.1-2.0% bismuth oxides, as Bi2O3, 0.1-2.0% cobalt oxides, as Co2O3, 0.1-2.0% manganese oxides, as MnO2, 0.1-2.0% antimony oxides, as Sb2O3, 0.1-2.0% chromium oxides, as Cr2O3, 0.1-2.0% nickel oxides, as NiO 0.001-0.05% aluminum oxides, as Al2O3, 0.005-0.1% boron oxides, as B2O3, 0.001-0.05% silver oxides, as Ag2O and 7-11% silicon oxides, as SiO2, and said layer comprises 45-60% silicon oxides, as SiO2, 30-50% zinc oxides, as ZnO, 1-5% bismuth oxides, as Bi2O3 and antimony oxides for the remainder (% stands for mole %). The resistor ...

COMMUNICATIONS CIRCUIT LINE PROTECTOR AND METHOD OF MAKING THE SAME

Baumbach Case 289 A line protector for a communications circuit provides a gas tube sure voltage arrester for primary surge protection and a back up air gap arrester for secondary protection in the event of venting of the gas tube. The gas tube is housed in a metallic tubular element that forms one electrode at the air gap, the other electrode at the air gap be provided by the rim of one of the gas tube electrodes. The tubular element is initially formed of circular cross section, then deformed to an oval cross section to be dimensioned to provide engagements across the minor diameter of the oval with the gas tube when the latter is telescoped therewith. The fit provided by the aforesaid engagement establishes the correct air gap width.

Устройство защиты оборудования от импульсных перенапряжений комбинированного типа

Полезная модель относится к силовой коммутационной аппаратуре. Техническим результатом заявляемого технического решения является повышение надежности. Устройство содержит блок ограничения, блок поджига, индикатор количества срабатываний, при этом блок ограничения установлен на металлической пластине, для трехфазной сети три однофазных устройства защиты оборудования от импульсных перенапряжений своими металлическими пластинами установлены параллельно на общем металлическом основании, которое заземлено, индикатор количества срабатываний подсоединен кабелем к датчику тока, установленному в цепи управляемого искрового разрядника, металлические пластины через общее металлическое основание заземлены, блок ограничения оборудован входной клеммой, блок ограничения в собранном виде поверх металлической прямоугольной пластины залит электроизоляционным компаундом, блок поджига в собранном виде также залит электроизоляционным компаундом и жестко прикреплен к блоку ограничения, содержащего две идентичных параллельно соединенных колонки из дисков нелинейных резисторов, которые электрически и механически соединены параллельно и сжаты между собой резьбовыми стяжками с помощью электроизоляционных планок. 1 з.п. ф-лы, 11 ил., 2 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 848 U1 (51) МПК H02H 9/00 (2006.01) H01C 7/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02H 9/06 (2021.02); H01C 7/12 (2021.02) (21)(22) Заявка: 2021104208, 19.02.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 19.11.2021 (45) Опубликовано: 19.11.2021 Бюл. № 32 Адрес для переписки: 117041, Москва, ул. Адмирала Лазарева, 43, кв. 40, Борисову Э.В. 2 0 7 8 4 8 U 1 (56) Список документов, цитированных в отчете о поиске: RU 2459333 C1, 20.08.2012. RU 57656 U1, 27.09.2006. RU 43109 U1, 27.12.2004. GB 1485679 A, 14.09.1977. US 5272588 A, 21.12.1993. (54) Устройство защиты оборудования от импульсных перенапряжений ...

Compact transient voltage surge suppression device

A transient voltage surge suppression device includes a varistor assembly having a compact thickness, and two different disconnect elements responsive to distinct overvoltage conditions to disconnect a varistor assembly prior catastrophic failure thereof.

Device for protection from surges with improved thermal disconnector

A device for protecting an electrical installation from surges, includes two terminals, a protective component connected to the terminals, and a thermal disconnector having a conductive contact blade maintained in a first position in which the contact blade ensures an electrical connection between the protective component and one of the two terminals. The thermal disconnector can be provided for making the contact blade go to a second position when the temperature of the protective component exceeds a predetermined threshold, wherein the contact blade and the one of the two connection terminals are part of a single and same piece.

Explosion-roof and flameproof ejection type safety surge-absorbing module

An explosion-proof and flameproof ejection type safety surge-absorbing module includes a protective member and a surge-absorbing unit. The protective member comprises a base and an upper lid coupled with the base. The base has two corresponding partitions extending upwards. The surge-absorbing unit includes a body, two connecting leads, and a resilient metallic plate. The body has two sides each defining an electrode surface. The electrode surface is connected with one of the connecting leads. The resilient metallic plate has a first end welded to the electrode surface with a contact member and a second end curved and striding across an outer side of one of the partitions to penetrate through the bottom of the base. In case the body of the surge-absorbing unit is overheated due to high temperature caused by a surge, the contact component will be melted allowing the resilient metallic plate to eject away from the electrode.

Device with overvoltage protection and method for its testing

Exemplary embodiments are directed to a device with overvoltage protection that includes a varistor which can be connected by a first connection via a first line to high-voltage potential in a circuit arrangement, while a second connection is connected to ground via a second line. Furthermore, an additional impedance is provided, which can be connected between the second connection and ground or the first connection and the high voltage, or is mounted fixed in this position. The corresponding line can be interrupted by a switching arrangement. In order to test the withstand voltage of the circuit arrangement, at least one of the first and second line is interrupted and an additional impedance is inserted. A test voltage is applied to the circuit arrangement. After the overvoltage test, the interruption in at least one of the first and second lines is removed again.

NON-LINEAR RESISTIVE ELEMENT AND MANUFACTURING METHOD THEREOF

Provided is a technique to secure compositional or microstructural uniformity of a ceramic sintered body while increasing the area of the ceramic sintered boy, thus improving basic performance including non-linearity, maximum withstand energy and aging characteristics. A plurality of small varistor pieces 11 and insulating resin are kneaded and extruded for shaping, whereby a sheet-form varistor layer 13 can be formed where a plurality of small varistor pieces 11 are spaced from one another and are aligned on the same plane, and the adjacent small varistor pieces 11 are bonded via insulating resin. 1. A non-linear resistive element , comprising: a varistor layer in a sheet form having a surface and a rear face that are parallel to each other; and conductive electrode layers joined to the each of the surface and the rear face of the varistor layer ,whereinthe varistor layer includes: a plurality of small varistor pieces that are made of a ceramic sintered body and are spaced from one another for alignment, each small varistor piece having a surface and a rear face coinciding with the surface and the rear face of the varistor layer, respectively; and insulating junctions that join the adjacent small varistor pieces.2. The non-linear resistive element according to claim 1 , wherein a plurality of the varistor layers and the electrode layers are alternately laminated in a direction perpendicular to each of the surface and the rear face of the varistor layer.3. The non-linear resistive element according to claim 1 , wherein the junctions comprise synthetic resin having elasticity.4. The non-linear resistive element according to claim 3 , wherein the junctions have a part of a thickness smaller than a thickness of a junction interface with the small varistor pieces.5. The non-linear resistive element according to any one of claims 1 , wherein the electrode layers are provided with a metal fitting for electric connection with others.6. The non-linear resistive element ...

Varistor fuse element

The purpose of the invention is to create such a varistor fuse element, which should within a single housing include both a varistor ( 1 ) as well as an electric fuse ( 2 ), wherein said varistor part i.e. a varistor ( 1 ) is intended to protect each electric installation against overvoltage impulses and consequently against current strokes, while the fuse ( 2 ) is capable to transmit the current stroke due to increased voltage and to interrupt each permanently increased electric current, which might occur due to defects on the varistor ( 1 ). Moreover, such varistor fuse should not exceed dimensions of already known and widely used protective means, in particular melting fuses. In accordance with the invention, the fuse ( 2 ) with its round tubular casing ( 20 ) and the varistor, which is also embedded within a round tubular casing ( 10 ), are serial interconnected and arranged coaxially within each other.

Surge arrester with extendable collar

A surge arrester has a collar for fixing tensioning elements. The collar is extendable and is capable of absorbing released energy in the event of a fault and holding together the cage containing the tensioning elements. The collar, which fixes the tensioning elements in the radial direction, is positioned around the cage of the surge arrester formed from the tensioning elements. The form of the collar is such that it has defined deformation regions, with the result that the collar can expand and thus widen in the event of a force effect in the radial direction. If the varistor elements expand in the manner of an explosion during an overload, the collar is expanded and absorbs some of the released energy. This ensures that the cage is held together in the event of an overload and thus no fragments of the varistor elements can be flung out of the cage.

METAL OXIDE VARISTOR DESIGN AND ASSEMBLY

A stacked arrangement of metal oxide varistors includes a plurality of metal oxide varistors with each metal oxide varistor of the plurality of metal oxide varistors having a first lead on a first surface and a second lead on a second surface, the first surface and the second surface being opposite facing surfaces of each metal oxide varistor. The first lead and the second lead of adjacent metal oxide varistors, when placed in a stacked arrangement, are arranged, preferably asymmetrically, so as not to interfere with one another, thereby result in a more compact stacking of metal oxide varistors, as compared to arrangements known to the state of the art. The stacked arrangement of metal oxide varistor can be mounted on printed circuit boards, in addition to a variety of other uses. 1. A stacked arrangement of metal oxide varistors , comprising:a first metal oxide varistor having a first lead on a first surface and a second lead on a second surface, said first surface and said second surface being opposite facing surfaces of said first metal oxide varistor; and,a second metal oxide varistor having a first lead on a first surface and a second lead on a second surface, said first surface and said second surface being opposite facing surfaces of said second metal oxide varistor, said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor being adjacent one another when placed in a stacked arrangement without said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor interfering with one another.2. The stacked arrangement of metal oxide varistors according to claim 1 , wherein said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor are mounted asymmetrically claim 1 , thereby allowing for tight grouping within said stacked arrangement of metal oxide varistors without said second lead of said first metal oxide varistor and ...

POLYMER SURGE ARRESTER

A plurality of insulating rods are placed at peripheries of the nonlinear resistor and the metal plates, and each having an upper end portion and a lower end portion inserted into holes formed in the electrodes. A spacer is placed between an inner peripheral surface of the hole and an outer peripheral surface of the insulating rod inside the hole of the electrode, and a fixing screw is attached to the hole of the electrode. A double-ended bolt couples the metal plate and the electrode together. The double-ended bolt has a first screw part and a second screw part opposite in a fastening direction to the first screw part which are provided on a same axis. The first screw part is attached to the metal plate, and the second screw part is attached to the electrode. 1. A polymer surge arrester , comprising:a nonlinear resistor;metal plates placed on an upper end face and a lower end face of the nonlinear resistor;electrodes placed on the upper end face and the lower end face of the nonlinear resistor via the metal plates;a plurality of insulating rods placed at peripheries of the nonlinear resistor and the metal plates, and each having an upper end portion and a lower end portion inserted into holes formed in the electrodes;a spacer inserted between an inner peripheral surface of the hole of the electrode and an outer peripheral surface of the insulating rod;a fixing screw attached to the hole of the electrode; anda double-ended bolt coupling the metal plate and the electrode together,wherein the double-ended bolt has a first screw part and a second screw part opposite in a fastening direction to the first screw part which are provided on a same axis;wherein the first screw part is attached to the metal plate; andwherein the second screw part is attached to the electrode.2. The polymer surge arrester according to claim 1 ,wherein the hole of the electrode has a cylindrical part, and a tapered part located on a side closer to the nonlinear resistor than is the cylindrical ...

Electrostatic discharge protection device and method for manufacturing the same

The present invention relates to an electrostatic discharge protection device. The electrostatic discharge protection device in accordance with an embodiment of the present invention includes a substrate, an electrostatic discharge absorbing layer having a plating film formed on the substrate, electrodes disposed on the substrate to be spaced apart from each other by a predetermined interval with the electrostatic discharge absorbing layer interposed therebetween, and an insulating layer for covering the substrate and the electrodes.

Surface mountable over-current protection device

A surface-mountable over-current protection device comprises a PTC material layer, first and second conductive layers, first and second electrodes, first and second electrically conductive connecting members. The PTC material layer has a resistivity less than 0.18 Ω-cm. The conductive layers are in contact with opposite surfaces of the PTC material layer. The first electrode comprises a pair of first metal foils and is insulated from the second conductive layer. The second electrode comprises a pair of second metal foils and is insulated from the first conductive layer. The first electrically conductive connecting member connects to the first metal foils and conductive layer. The second electrically conductive connecting member connects to the second metal foils and conductive layer. The first electrically conductive connecting member comprises 40%-100% by area of the first lateral surface, and the second electrically conductive connecting member comprises 40%-100% by area of the second lateral surface.

NON-LINEAR RESISTIVE ELEMENT

Provided is a non-linear resistive element which enables to narrow an interval between a plurality of electrodes. A ceramic sheet () which constitutes the non-linear resistive element is configured by being supported in a sheet like form by a support member () composed of an insulating material. A plurality of ceramic pieces () are sectioned and arranged in each of a plurality of unit areas () which are apart from each other. 1. A non-linear resistive element comprising ,at least a ceramic sheet configured by a plurality of ceramic pieces composed of ceramic sintered compact, and a sheet-like support member composed of insulating material and which supports each of the plurality of the ceramic pieces,one or the plurality of the ceramic pieces configure each of a plurality of conductive paths which penetrate the ceramic sheet in a thickness direction thereof, and the ceramic pieces configuring both ends of the conductive paths are partially exposed from the support member,wherein each of the plurality of the ceramic pieces is supported by the support member in a state in which the plurality of the ceramic pieces are sectioned and arranged in each of a plurality of unit areas which are apart from each other.2. The non-linear resistive element according to claim 1 , wherein the non-linear resistive element comprises a plurality of electrode plates arranged on one or both of a pair of main faces of the ceramic sheet claim 1 , in a state electrically conducted with a single or a plurality of the ceramic pieces arranged in each of the plurality of the unit areas claim 1 , and apart from each other across a boundary region between different unit areas among the support member.3. The non-linear resistive element according to claim 2 , in which the electrode plates are arranged on each of the pair of main faces of the ceramic sheet claim 2 , comprising claim 2 ,a pair of insulating retainer plates arranged on each face of the electrode plates at an opposite side of a face of ...

SUPPORT ARRANGEMENT FOR AN ELECTRICAL PROTECTION ASSEMBLY

A support arrangement for an electrical protection assembly for connection between an electrical power supply line and electrical equipment is provided. The support arrangement comprises a first insulator body and a second insulator body extending at right angles to the first insulator body, wherein the first and second insulator bodies are integrally formed into a unitary body. In an embodiment, the second insulator body extends from a lower end of the first insulator body, so as to define a unitary L-shaped support arrangement. In one version, the support arrangement comprises an L-shaped inner support frame around which the first and second insulator bodies are molded. The L-shaped inner support frame comprises a T-shaped metal connector having a first end from which a first fibre glass support arm extends, around which the first insulator body is molded, and a second end from which a second fibre glass support arm extends, around which the second insulator body is molded. 2. The support arrangement of claim 1 , wherein the second insulator body extends from a lower end of the first insulator body claim 1 , at right angles thereto claim 1 , so as to define a unitary L-shaped support arrangement.3. The support arrangement of claim 1 , wherein displaceable upper arm extends across the top of the support arrangement claim 1 , with a fuse cutout assembly comprising a fuse tube extending on the side of the support arrangement with the second insulator body claim 1 , and on the other side of the support arrangement there is a surge protection assembly comprising a drop out voltage surge protection unit.4. The support arrangement of claim 3 , wherein the upper end of the fuse tube is releasably fitted to a first end of the displaceable upper arm claim 3 , with the distal end of the second insulator body including a first bracket with a connector at its free end to accommodate the lower end of the fuse tube claim 3 , in use claim 3 , in a pivotal manner.5. The support ...

ANTI-LIGHTNING STROKE OVERCURRENT PROTECTION SWITCH

An anti-lightning stroke overcurrent protection switch comprises an overcurrent protection switch with an overvoltage protection sensor disposed inside and operated by one of the conductive plates. The overvoltage protection sensor comprises a metal oxide varistor and an insulating thermosensitive piece, disposed at one side of the operating portion of the conductive plate; on the other side a spring is arranged, providing the elastic force to hold the position of the thermosensitive piece. When the metal oxide varistor rises up the temperature to a certain degree due to high voltages, the thermosensitive piece would melt instantly due to its large contact surface and rapid heat conduction, resulting the elastic force counterbalanced and assuring the switch to be turned off before reaching an exceeding high degree of temperature, further improving safety of the present invention. 1. An anti-lightning stroke overcurrent protection switch comprising:a housing with a press button, a first conductive plate, a second conductive plate, and a third conductive plate; said first conductive plate having a binary alloy conductive spring leaf and a first connecting point and said second conductive plate having a second connecting point at top corresponding to said first connecting point;a moving rod linking up the bottom of said press button with one end and a movable end of said binary alloy conductive spring leaf with the other end, whereby the press button pressing said binary alloy conductive spring leaf and connecting the first connecting point and the second connecting point, turning on the switch, and when current overload happens the binary alloy conductive spring leaf would deform due to high temperature, moving said first connecting point and the second connecting point apart, thus turning off the switch, so as to form an overcurrent protection switch;wherein said second conductive plate includes an extending portion stretching out the housing and an operating portion ...

Thermal Protection Device

In an embodiment a thermal protection device includes a housing, a varistor partly embedded in the housing, wherein the housing electrically insulates the varistor, and wherein the varistor includes a partly uninsulated contact surface, an inner wall of insulating material arranged adjacent to the contact surface of the varistor, a window in the inner wall configured to allow an electrical connection of the contact surface of the varistor in an operational state of the thermal protection device and a moveable insulation block configured to cover the window in the inner wall to insulate the varistor in a region of the window of the inner wall in a fault state of the thermal protection device.

SURGE ARRESTER AND METHOD FOR INSTALLING A SURGE ARRESTER

A surge arrester includes a tubular housing and an end fitting which is connected to one end of the housing and on which a column having at least one electrical resistor is disposed. A support abuts the inner surface of the tubular housing in the region of the end fitting. The support has a recess in the longitudinal direction of the surge arrester, into which a pressure device is inserted. A method for installing a surge arrester is also provided. 115-. (canceled)16. A surge arrester , comprising:a tubular housing having an end and an inner surface;an end fitting connected to said end of said housing;a column disposed on said end fitting, said column having at least one electrical resistor;a support abutting said inner surface of said tubular housing in a region of said end fitting, said support having a recess formed in a longitudinal direction of the surge arrester; anda pressure device inserted in said recess.17. The surge arrester claim 16 , according to claim 16 , wherein said pressure device is wedge-shaped.18. The surge arrester according to claim 16 , wherein said pressure device is form-lockingly disposed in said recess.19. The surge arrester according to claim 16 , wherein:said recess has two contact regions contacting said pressure device;said contact regions each have a guide groove;said pressure device has sides facing said contact regions and a respective guide projection on each of said sides; andsaid guide projections are disposed in said guide grooves.20. The surge arrester according to claim 19 , wherein said guide grooves and said guide projections fix said pressure device on said support and produce a cylinder-barrel-shaped outer contour of said pressure device and said support being pressed against said inner surface of said tubular housing without damage.21. The surge arrester according to claim 16 , wherein said support is a hollow cylinder.22. The surge arrester according to claim 16 , wherein said pressure device is one of a plurality of ...

Surge Arresters and Related Assemblies and Methods

A surge arrester includes a polymer body including a first leg having a first channel defined therein and a second leg perpendicular to the first leg and having a second channel defined therein. A varistor assembly is in the first channel. The varistor assembly includes a plurality of varistor elements electrically connected in series and forming a stack of the plurality of varistor elements. The stack has a first end surface, a second end surface, and an outer side surface extending between the first end surface and the second end surface. The varistor assembly includes a first end fitting at the first end surface of the stack, a second end fitting at the second end surface of the stack, a plurality of rods disposed around the side surface of the stack, and a polymer fill layer between the side surface of the stack and the first leg of the body. 1. A surge arrester comprising: a first leg having a first channel defined therein; and', 'a second leg perpendicular to the first leg and having a second channel defined therein, the second channel configured to receive a bushing;, 'a polymer body comprising a plurality of varistor elements electrically connected in series and forming a stack of the plurality of varistor elements, wherein the stack has a first end surface, a second end surface, and an outer side surface extending between the first end surface and the second end surface;', 'a first end fitting at the first end surface of the stack;', 'a second end fitting at the second end surface of the stack;', 'a plurality of rods disposed around the side surface of the stack, each rod comprising a first end that is connected to the first end fitting and a second end that is connected to the second end fitting; and', 'a polymer fill layer between the side surface of the stack and the first leg of the body., 'a varistor assembly in the first channel, the varistor assembly comprising2. The surge arrester of wherein the fill layer fills an air void that would otherwise be ...

Chip with Protection Function and Method for Producing Same

A chip and a method for manufacturing a chip are disclosed. In an embodiment, the chip includes a varistor layer composed of zinc oxide, a multilayered electrode structure which realizes a varistor function in the varistor layer and at least two solderable or bondable external contacts on a first main surface of the varistor layer. The chip further includes a glass layer disposed on the first main surface leaving only the external contacts uncovered, wherein the glass layer includes, as main constituents, oxides of Si and/or Ge, B and K, which in total have at least 70% by weight of the constituents of the glass layer, and wherein the glass layer is substantially free of Al, Ga, Cr and Ti. 113-. (canceled)14. A chip comprising:a varistor layer composed of zinc oxide;a multilayered electrode structure which realizes a varistor function in the varistor layer;at least two solderable or bondable external contacts on a first main surface of the varistor layer; anda glass layer disposed on the first main surface leaving only the external contacts uncovered,wherein the glass layer comprises, as main constituents, oxides of Si and/or Ge, B and K, which in total comprise at least 70% by weight of the constituents of the glass layer, andwherein the glass layer is substantially free of Al, Ga, Cr and Ti.15. The chip according to claim 14 , further comprising electrical connection pads on a second main surface of the varistor layer claim 14 , the electrical connection pads configured to connect an electrical component.16. The chip according to claim 15 , wherein the external contacts and the connection pads are deposited electrolytically claim 15 , and wherein the external contacts and the connection pads comprise at least one of Ni claim 15 , Ag and Au.17. An arrangement comprising:{'claim-ref': {'@idref': 'CLM-00015', 'claim 15'}, 'a chip according to ; and'}an electrical component,wherein the electrical component is mounted on the second main surface of the varistor layer ...

SURGE ARRESTER SYSTEM AND CIRCUIT BREAKER SYSTEM

A surge arrester system includes a surge arrester, and an active cooling system having a cooling interface in contact with the surge arrester and operative to transfer heat from the surge arrester. The active cooling system includes a forced convection apparatus operative to provide forced convection cooling. A circuit breaker system includes a power semiconductor switch and an active cooling system constructed to cool the power semiconductor switch. The active cooling system includes a forced convection apparatus configured to provide forced convection cooling. The power semiconductor switch is in contact with the active cooling system. A surge arrester is disposed adjacent to and in contact with the active cooling system. The active cooling system includes a cooling interface constructed for contact with the surge arrester and operative to provide cooling to the surge arrester. The power semiconductor switch and the surge arrester dissipate power alternatively. 1. A surge arrester system , comprising:a surge arrester; andan active cooling system having a cooling interface in contact with the surge arrester and operative to transfer heat from the surge arrester,wherein the active cooling system includes a forced convection apparatus operative to provide forced convection cooling.2. The surge arrester system of claim 1 , wherein the cooling interface is disposed on a first side of the surge arrester claim 1 , further comprising another active cooling system having another cooling interface in contact with the surge arrester and disposed on a second side of the surge arrester opposite to the first side claim 1 , wherein the other cooling interface is operative to transfer heat from the surge arrester.3. The surge arrester of claim 1 , wherein the forced convection apparatus is a fan or a pump.4. The surge arrester system of claim 1 , wherein the active cooling system includes a heat pipe system.5. The surge arrester system of claim 4 , wherein the heat pipe system is ...

COMPONENT SUBSTRATE HAVING A PROTECTIVE FUNCTION AND METHOD FOR PRODUCTION THEREOF

A mechanically stable main body having a cutout, into which an ESD protection element is at least partly embedded and mechanically fixed by means of a connection means. Electrical terminals of the protection element are connected to terminal pads on the top side of the main body by way of a structured metallic layer bearing on main body and protection element. 1. A carrier plate for an electrical componentcomprising a mechanically stable main body, having external contacts on the underside and terminal pads for the component on the top side,comprising a cutout, into which an ESD protection element is at least partly embedded, wherein the electrical terminals of the protection element are accessible from the top side or the underside of the main body,wherein the protection element is mechanically fixedly embedded in the cutout of the main body by means of a connection means,wherein the electrical terminals of the protection element are connected by way of a structured metallic layer to the terminal pads on the top side or the external contacts on the underside.2. The carrier plate according to claim 1 ,wherein the protection element is a varistor, a zener diode, a TVS component or some other nonlinear element.3. The carrier plate according to claim 1 ,wherein the connection means comprises a plastic or a ceramic material, glass or a metal.4. The carrier plate according to claim 1 ,wherein the outwardly facing surface of the protection element terminates flush with a surface of the main body,wherein the structured metallic layer bears on the two flush surfaces.5. The carrier plate according to claim 1 ,wherein the external contacts and the terminal pads are electrically connected via plated-through holes,wherein the main body has a multilayer construction in which a wiring plane is provided internally in the main body.6. The carrier plate according to claim 1 ,wherein the cutout is arranged between the terminal pads for the component or therebelow,wherein the ...

Thermal Protected Varistor Device

In an embodiment a thermal varistor protection device includes a casing, a varistor embedded in the casing, wherein the varistor includes a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection, a first terminal wire electrically conductively connected to the first metallization electrode of the varistor and a contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material, wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose. 112-. (canceled)13. A thermal varistor protection device comprising:a casing;a varistor embedded in the casing, wherein the varistor comprises a first metallization electrode, which is only partly covered by an insulating material of the casing to allow an electrically conductive connection;a first terminal wire electrically conductively connected to the first metallization electrode of the varistor; anda contact element electrically conductively connected to the first metallization electrode of the varistor in a region where the varistor is not covered by the insulating material,wherein the contact element is pre-stressed to ensure a fast separation of the contact element and the first metallization electrode when the electrically conductive connection between the contact element and the first metallization electrode becomes loose.14. The thermal varistor protection device according to claim 13 , wherein a pre-stress to the contact element is caused by a part of the contact element itself claim 13 , and wherein one part of the contact element is elastic.15. The thermal varistor protection device according to claim 14 , wherein the casing ...

DEVICES FOR ACTIVE OVERVOLTAGE PROTECTION

A circuit protection device is provided. The circuit protection device includes an active energy absorber that is coupled between two power lines in an electrical power distribution system and is configured to selectively conduct fault current responsive to overvoltage conditions. The active energy absorber includes an overvoltage protection module that includes two thyristors that are connected in anti-parallel with one another and a varistor that is connected with the overvoltage protection module as a series circuit. The series circuit including the varistor and the overvoltage protection module is connected between the power lines. 123.-. (canceled)24. An active energy absorber module comprising:first and second electrical terminals;a module housing;first and second thyristors enclosed within the module housing and electrically connected between the first and second electrical terminals; anda varistor enclosed within the module housing and electrically connected to at least one of the first and second thyristors between the first and second electrical terminals.25. The active energy absorber module of wherein the varistor is connected in electrical series with each of the first and second thyristors.26. The active energy absorber module of wherein the first and second thyristors are connected in anti-parallel between the first and second electrical terminals.27. The active energy absorber module of wherein:the active energy absorber module further includes a second varistor enclosed within the module housing;the first thyristor includes a first anode and a first cathode;the second thyristor includes a second anode and a second cathode;the first varistor is electrically connected to the first anode and the first cathode; andthe second varistor is electrically connected to the second anode and the second cathode.28. The active energy absorber module of wherein the active energy absorber module further includes an inductor connected between a junction of the first ...

SENSOR TO MONITOR HEALTH OF METAL OXIDE ARRESTERS

A sensor to monitor health of surge arresters such as metal oxide arresters is disclosed. The sensor including a housing; a sensor assembly contained in the housing, and a voltage measurement strap extending around a periphery of the housing. The voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field. The sensor assembly including: an electronics board to receive, transmit, process, and store signals; a Rogowski coil electrically connected to the electronics board to measure surge currents diverted by the surge arrestor; and a current transformer electrically connected to the electronics board to measure leakage current. 1. A surge arrestor sensor configured to monitor a health of a surge arrester , comprising:(a) a housing; (i) an electronics board to receive, transmit, process, and store signals;', '(ii) a Rogowski coil electrically connected to the electronics board to measure surge currents diverted by the surge arrestor; and', '(iii) a current transformer electrically connected to the electronics board to measure leakage current; and, '(b) a sensor assembly contained in the housing, the sensor assembly including(c) a voltage measurement strap extending around a periphery of the housing, the voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field.2. The surge arrester sensor according to claim 1 , further including a central shaft extending through a center of the housing between a first arrester side of the housing and a second non-arrester side of the housing claim 1 , the central shaft being grounded only to the second non-arrester side of the housing to reduce the capacitive current measured from the surge arrestor sensor to ground.3. The surge arrester sensor according to claim 2 , wherein the current transformer is positioned around the central shaft claim 2 , the current transformer being ...

Varistor Component and Method for Securing a Varistor Component

A varistor component and a method for securing a varistor component are disclosed. In an embodiment, a varistor includes a first external contact, a second external contact, a varistor electrically connected to the first external contact, a path between the varistor and the second external contact and an active releasing device including a shutter and a heat sensitive element, wherein the heat sensitive element releases the shutter under abnormal operation conditions and the shutter closes the path between the varistor and the second external contact. 113-. (canceled)14. A varistor component comprising:a first external contact;a second external contact;a varistor electrically connected to the first external contact;a path between the varistor and the second external contact; andan active releasing device comprising a shutter and a heat sensitive element,wherein the heat sensitive element releases the shutter under abnormal operation conditions and the shutter closes the path between the varistor and the second external contact.15. The varistor component of claim 14 , wherein the heat sensitive element is arranged in the path and establishes an electrical connection between the varistor and the second external contact.16. The varistor component of claim 14 , wherein the heat sensitive element is a fuse and has a conducting material with a melting point below 230° C.17. The varistor component of claim 14 , further comprising a spring exerting a force onto the shutter.18. The varistor component of claim 14 , further comprising a housing with a first hole claim 14 ,where the shutter has a second hole arranged adjacent to the first hole,wherein the first and the second holes establish a segment of the path, andwherein the heat sensitive element is a metallic body extending through the first and the second holes and electrically connecting the varistor to the second external contact.19. The varistor component of claim 18 ,wherein the shutter has a hub,wherein the housing ...

VOLTAGE-DEPENDENT RESISTOR DEVICE FOR PROTECTING A PLURALITY OF CONDUCTORS AGAINST A POWER SURGE

Devices for protecting a plurality of conductors against a power surge. One device includes a first electrode positioned on a first surface of the device, a second electrode positioned on the first surface of the device, and a floating electrode positioned on a second surface of the device. The first electrode is configured to receive a surge current from a first conductor. The surge current travels through the device from the first electrode to the floating electrode and from the floating electrode to the second electrode 1. A device for protecting a plurality of conductors against a power surge , the device comprising:a first electrode positioned on a first surface of the device;a second electrode positioned on the first surface of the device; anda floating electrode positioned on a second surface of the device,wherein the first electrode is configured to receive a surge current from a first conductor, the surge current traveling through the device from the first electrode to the floating electrode and from the floating electrode to the second electrode.2. The device of claim 1 , further comprising:a border region positioned on the first surface of the device; andan isolating region positioned on the first surface of the device, the isolating region separating the first electrode and the second electrode.3. The device of claim 1 , wherein the device is a metal oxide varistor element included within a surge arrester.4. The device of claim 1 , wherein the first electrode is associated with a first conductor and the second electrode is associated with a second conductor different from the first conductor.5. The device of claim 1 , wherein a physical shape of the device is at least one selected from a group consisting of a circular disk claim 1 , a cylinder claim 1 , a rectangle claim 1 , a square claim 1 , an oval claim 1 , and a triangle.6. The device of claim 1 , wherein an area of the first electrode is the same as an area of the second electrode.7. The device of ...

Varistor Passivation Layer and Method of Making the Same

In general, a varistor including a passivation layer and a method of forming such a varistor are disclosed. The varistor comprises a ceramic body comprising a plurality of alternating dielectric layers and electrode layers. The varistor also comprises a first external terminal on a first end surface and a second external terminal on a second end surface opposite the first end surface wherein at least two side surfaces extend between the first end surface and the second end surface. The varistor also comprises a passivation layer on at least one side surface of the ceramic body between the first external terminal and the second external terminal. The passivation layer includes a phosphate and a metal additive including an alkali metal, an alkaline earth metal, or a mixture thereof. The passivation layer has an average thickness of from 0.1 microns to 30 microns. 140-. (canceled)41. A varistor comprising:a ceramic body comprising a plurality of alternating dielectric layers and electrode layers,a first external terminal on a first end surface and a second external terminal on a second end surface opposite the first end surface, at least two side surfaces extending between the first end surface and the second end surface,a passivation layer on at least one side surface of the ceramic body between the first external terminal and the second external terminal, wherein the passivation layer includes a phosphate and a metal additive including an alkali metal, an alkaline earth metal, or a mixture thereof, wherein the passivation layer has an average thickness of from 0.1 microns to 30 microns.42. The varistor according to claim 41 , wherein the metal additive comprises an alkali metal.43. The varistor according to claim 42 , wherein the alkali metal comprises potassium.44. The varistor according to claim 41 , wherein the metal additive comprises an alkaline earth metal.45. The varistor according to claim 44 , wherein the alkaline earth metal comprises magnesium.46. The ...

VARISTOR MODULE

A varistor module includes a base, a case, and a varistor body. The base and the case are assembled with each other to form a closed space. The varistor body includes a plurality of ceramic chips and a bridging element. The ceramic chips are disposed in the closed space. Each ceramic chip has an electrode layer on two opposite sides, respectively. The bridging element has at least two bridging segments and a crossing segment. The bridging segments are connected to electrode layers of different ones of the ceramic chips. The crossing segment is disposed between the bridging segments. 1. A varistor module , comprising:a base;a case assembled with the base to jointly form a closed space, wherein the medium in the closed space is air; and a plurality of ceramic chips disposed in the closed space, each of the ceramic chips having electrode layers on two sides, respectively;', 'a bridging element having at least two bridging segments and a crossing segment disposed between the bridging segments, the bridging segments connected to the electrode layers of different ones of the ceramic chips, respectively., 'a varistor body including'}2. The varistor module according to claim 1 , wherein the bridging element further includes an extension segment extending from the bridging element and out of the closed space.3. The varistor module according to claim 1 , wherein each of the bridging segments of the bridging element extends outward from the connected electrode layer along a planar direction of the ceramic chip claim 1 , and the crossing segment of the bridging element stretches along a thickness direction of the ceramic chips.4. The varistor module according to claim 1 , wherein the crossing segment is embedded in the base.5. The varistor module according to claim 1 , wherein at least one of the base and the case is made of a material containing ceramic.6. The varistor module according to claim 1 , wherein at least one of the base and the case is made of a material containing ...

VARISTOR MODULE

A varistor module includes a base, a case, a varistor body and a metal flat spring. The base has two limit structures. The case is assembled with the base and to form a closed space. The limit structures are disposed in the closed space. The varistor body includes a ceramic chip and two limit pins. The ceramic chip has two electrode layers located on two opposite surfaces, respectively. The limit pins are disposed on the electrode layers, respectively. The limit pins extend outward from the corresponding electrode layers and pass through the limit structures. One of the limit pins forms a splice segment between the electrode layer and the limit structure. The metal flat spring is disposed on the base. One end of the metal flat spring passes out of the closed space, and the other end of the metal flat spring is connected to the splice segment. 1. A varistor module , comprising:a base having two limit structures;a case assembled with the base and to form a closed space, the limit structures disposed in the closed space; and at least one ceramic chip disposed in the closed space, the ceramic chip having two electrode layers located on two opposite surfaces, respectively;', 'two limit pins disposed on the electrode layers, respectively, the limit pins extending outward from the corresponding electrode layers and passing through the limit structures to limit the varistor body in a predetermined position in the closed space, the limit pins passing through the base and at least one of the limit pins forming a splice segment between the electrode layer and the limit structure; and', 'a metal flat spring disposed on the base, one end of the metal flat spring passing out of the closed space, and the other end of the metal flat spring connected to the splice segment., 'a varistor body, including'}2. The varistor module according to claim 1 , wherein each limit structure includes a column body claim 1 , and the corresponding limit pin extends into the interior of the column ...

SURGE PROTECTION DEVICE

A surge protection device has a housing that is formed from a first lateral portion, a middle portion, and a second lateral portion that are connected together with a plurality of fasteners. The surge protection device includes an electronic apparatus having a neutral wire and further includes a housing that advantageously includes a strain relief that causes the neutral wire to frictionally engage the housing with sufficient friction to resist a predetermined tension applied to the free end or other portion of the neutral wire at the exterior of the housing from damaging an electrical connection between the neutral wire and a circuit board within an interior region of the surge protection device. 1. A surge protection device comprising:a housing comprising a first lateral portion, a second lateral portion, and a middle portion, at least a part of the middle portion being situated between the first and second lateral portions, the housing having an interior region;an electronic apparatus situated on the housing, the electronic apparatus comprising a circuit board, at least a first varistor electrically connected with the circuit board, and at least a first line terminal electrically connected with the circuit board, the circuit board and the at least first varistor being situated within the interior region; andat least one of the circuit board and the middle portion having a receptacle formed therein, at least a portion of the other of the at least one of the circuit board and the middle portion being received in the receptacle to thereby mount the circuit board to the middle portion.2. The surge protection device of wherein the housing further comprises a number of fasteners claim 1 , a fastener of the number of fasteners directly affixing together the first lateral portion and the middle portion claim 1 , and the fastener further directly affixing together the second lateral portion and the middle portion claim 1 , another fastener of the number of fasteners ...

Conbined Tubular Metal Oxide Varistor and Gas Discharge Tube

Provided herein are protection devices having a tubular ceramic part and a tubular metal oxide varistor (MOV) electrically coupled in series or parallel. In some embodiments, the tubular ceramic part is connected between a first electrode and a second electrode, and the tubular MOV is connected between the second electrode and a third electrode. In some embodiments, the tubular ceramic part and the tubular MOV have a same or similar shape and/or outer circumference. The protection device further includes an enclosure surrounding the tubular ceramic part and the tubular MOV, wherein the first electrode, the second electrode, and the third electrode each have leads extending outside the enclosure. In some embodiments, the tubular MOV includes a central cavity aligned with a central cavity of the tubular ceramic part, wherein the central cavity of the tubular MOV MOV and the central cavity of the tubular ceramic part contain an inert gas. 1. A protection device , comprising:a tubular ceramic part having a first end coupled to a first electrode and a second end coupled to a second electrode;a tubular metal oxide varistor (MOV) having a first end coupled to the second electrode and a second end coupled to a third electrode, wherein the tubular MOV includes a central cavity aligned with a central cavity of the tubular ceramic part, the central cavity of the tubular MOV and the central cavity of the tubular ceramic part containing an inert gas; andan enclosure surrounding the tubular ceramic part and the tubular MOV.2. The protection device according to claim 1 , wherein the first electrode claim 1 , the second electrode claim 1 , and the third electrode each include leads extending outside the enclosure.3. The protection device according to claim 1 , wherein the tubular ceramic part and the tubular MOV are electrically connected in parallel or electrically connected in series by the inert gas.4. The protection device according to claim 3 , wherein the tubular ceramic part ...

DIRECT CURRENT SWITCHING DEVICE AND USE THEREOF

A direct current switching device for interrupting an electric direct current flowing along a medium or high voltage current path. An electric circuit arrangement has a mechanical switching device connected in the current path and a circuit unit for forcing a zero-crossing point in the mechanical switching device. The circuit unit has multiple capacitive components and a switch which are connected in the circuit unit such that, in a first switching state of the switch, the capacitive components are connected in parallel for a respective electric charging process via the medium or high voltage current path and, in a second switching state of the switch, the capacitive components are connected in series in order to generate a current pulse which forces the zero-crossing point. The direct current switching device is useful for interrupting an electric direct current flowing along the medium or high voltage current path. 110-. (canceled)11. A direct-current switching device for interrupting a direct electric current flowing along a medium or high voltage current path , the device comprising:an electric circuit arrangement including at least one mechanical switching device to be connected in the medium or high voltage current path;at least one circuit unit configured to force a current zero crossing in the mechanical switching device connected in the medium or high voltage current path; in a first switching state of said switch, said capacitive components are connected in parallel for a respective electrical charging process via the medium or high voltage current path; and', 'in a second switching state of said switch, said capacitive components are connected in series to generate a current pulse which forces the current zero crossing., 'said at least one switching unit having a plurality of capacitive components and a switch connected in said switching unit so that12. The direct-current switching device according to claim 11 , wherein said at least one switching unit is ...

DC SOFT TURN-OFF MODULE

A DC soft turn-off module includes a switch contact and a soft turn-off circuit connected in parallel onto the switch contact. The soft turn-off circuit includes three branches connected each other in parallel. The first branch includes a thermistor and a first thyristor connected in series. The second branch comprises a capacitor and a first resistor connected in series. A second thyristor, a second resistor and a third resistor form a trigger branch for the first thyristor. The third branch includes a varistor connected in parallel onto the first branch and the second branch. 1. A DC soft turn-off module comprising a switch contact and at least one soft turn-off circuit connected in series and connected in parallel onto the switch contact , wherein each soft turn-off circuit comprises a first branch and a second branch connected in parallel , wherein:the first branch comprises a thermistor and a first thyristor connected in series, wherein the thermistor is a PTC device having a positive temperature coefficient, and the holding current Ih of the first thyristor is greater than 10 mA,the second branch comprises a capacitor and a first resistor connected in series, anda second thyristor, a second resistor and a third resistor form a trigger branch for the first thyristor, wherein an anode of the second thyristor connects to a series connection between the capacitor and the first resistor, a control gate of the second thyristor and the third resistor in series connects to the series connection, a cathode of the second thyristor connects to one end of the second resistor, and the other end of the second resistor connects to the second terminal of the switch contact, and a series connection between the cathode of the second thyristor and the second resistor connects to a control gate of the first thyristor.2. The DC soft turn-off module according to claim 1 , wherein each soft turn-off circuit further comprises a third branch comprising a varistor connected in parallel ...

BARREL-SHAPED FIREPROOF AND EXPLOSION-PROOF SURGE PROTECTION DEVICE WITH OVER-TEMPERATURE PROTECTION FUNCTION

The invention provides a barrel-shaped fireproof and explosion-proof surge protection device with the function of over-temperature protection, comprising a barrel-shaped housing, a barrel-shaped varistor and a cylindrical temperature protector, wherein the barrel-shaped housing houses the outer wall of the barrel-shaped varistor, the barrel-shaped varistor comprises a barrel-shaped varistor chip, an outer electrode, and an inner electrode, wherein the outer electrode is connected with an outer pin while the inner electrode is connected with an inner pin, the cylindrical temperature protector is arranged in the barrel space of the barrel-shaped varistor and is provided with two leading foots which are led out independently, or one of which is connected with the inner electrode of the barrel-shaped varistor and is led out, or one of which is connected with the inner electrode of the barrel-shaped varistor but is not led out. 1. A barrel-shaped fireproof and explosion-proof surge protection device with the function of over-temperature protection , characterized by comprising: a barrel-shaped housing , a barrel-shaped varistor and a cylindrical temperature protector , wherein the barrel-shaped housing houses the outer wall of the barrel-shaped varistor , the barrel-shaped varistor comprises a barrel-shaped varistor chip , an outer electrode arranged on the outer circular wall and outer top of the barrel-shaped varistor chip , and an inner electrode arranged on the inner circular wall and inner top of the barrel-shaped varistor chip , wherein the outer electrode is connected with an outer pin while the inner electrode is connected with an inner pin; the cylindrical temperature protector is arranged in the barrel space of the barrel-shaped varistor and is provided with two leading foots which are led out independently , or one of which is connected with the inner electrode of the barrel-shaped varistor and is led out , or one of which is connected with the inner electrode ...

Surge arrester

A surge arrester includes at least one resistor element and a cage in which the at least one resistor element is disposed. The cage includes an upper holder, a lower holder and at least three insulating rods, which are each held at one respective rod end thereof by the upper holder and at the other respective rod end thereof by the lower holder. The upper holder and the lower holder are configured in such a way that they each enable at least two different positions for at least one of the insulating rods, relative to the two holders, and the at least one insulating rod can be positioned differently relative to the two holders.

DISCHARGE GAP FILLING COMPOSITION AND ELECTROSTATIC DISCHARGE PROTECTOR

An electrostatic discharge protector including two electrodes for forming a discharge gap, and a discharge gap filling-member including a discharge gap filing composition filed in the discharge gap, the discharge gap filling composition contains metal particles (A) obtainable by metal particles with a hydrolyzed product of a metal alkoxide represented by the following formula (1) and a binder component (C), and the electrostatic discharge protector includes the composition; 1. An electrostatic discharge protector comprising two electrodes for forming a discharge gap , and a discharge gap filling-member that is filled in the discharge gap {'br': None, 'sub': 2', 'n, 'R—O-[M(OR)—O—]—R\u2003\u2003(1)'}, 'wherein the discharge gap-filling member comprises a discharge gap filling composition comprising surface coated metal particles (A) obtained by covering metal particles with a hydrolyzed product of a metal alkoxide represented by the following formula (1) and a binder component (C);'}wherein M is a metal atom, O is an oxygen atom, R is an alkyl group of 1 to 20 carbon atoms, all or a part of Rs may be the same as or different from each other, and n is an integer of 1 to 40 and wherein the discharge gap has a distance of 5 to 300 μm.2. The electrostatic discharge protector according to wherein the element M in the formula (1) is silicon claim 1 , titanium claim 1 , zirconium claim 1 , tantalum or hafnium.3. The electrostatic discharge protector according to wherein the metal particles of the metal particles (A) are oxide film coated metal particles.4. The electrostatic discharge protector according to wherein the metal of the oxide film coated metal particles is at least one selected from the group consisting of manganese claim 3 , niobium claim 3 , zirconium claim 3 , hafnium claim 3 , tantalum claim 3 , molybdenum claim 3 , vanadium claim 3 , nickel claim 3 , cobalt claim 3 , chromium claim 3 , magnesium claim 3 , titanium and aluminum.5. The electrostatic discharge ...

SURGE ARRESTER AND METHOD OF MANUFACTURING A SURGE ARRESTER

A surge arrester has a discharge column formed of a stack of a plurality of varistor disks. The stack is stabilized with a fiberglass material. The fiberglass material is preimpregnated with a resin and the fiberglass material has glass fibers with a maximum diameter of 8 μm. A surge arrester may be formed by wrapping a tape of such fiberglass material around a stack of varistor disks. 1. A surge arrester , comprising:a discharge column formed with a plurality of varistor disks;fiberglass material impregnated with resin disposed to stabilize said discharge column;said fiberglass material having glass fibers with a maximum diameter of 8 μm.2. The surge arrester according to claim 1 , wherein said fiberglass material has a resin content of more than 21 percent by weight.3. The surge arrester according to claim 1 , wherein said fiberglass material has a percentage of volatile substances within said resin of less than 4 percent by weight.4. The surge arrester according to claim 1 , wherein said fiberglass material is wrapped around said discharge column.5. The surge arrester according to claim 4 , wherein said fiberglass material is a tape having a width that is narrower than a length of said discharge column.6. The surge arrester according to claim 5 , wherein said tape is wrapped around said discharge column a plurality of times.7. The surge arrester according to claim 1 , which further comprises a housing made of a material that is partly composed of silicone.8. A method of manufacturing a surge arrester claim 1 , the method comprising the following steps:providing a fiberglass material impregnated with resin, the fiberglass material having glass fibers with a maximum diameter of 8 μm; andstabilizing a discharge column having a plurality of varistor disks with the fiberglass material.9. The method according to claim 8 , which comprises providing the fiberglass material with a resin content of more than 21 percent by weight.10. The method according to claim 8 , which ...

OVERVOLTAGE PROTECTION DEVICE WITH VARISTORS

The invention relates to an overvoltage protection device with varistors, wherein a first varistor and a second varistor are connected in series, wherein the first varistor has a thermal disconnector, wherein the first varistor has a lower operating voltage than the second varistor, and wherein the first varistor has a lower energy absorption capacity than the second varistor, with the first varistor heating up more in the event of an overload and thereby causing the thermal disconnector to disconnect. 1. An overvoltage protection device with varistors , wherein a first varistor and a second varistor are connected in series , wherein the first varistor has a thermal disconnector , wherein the first varistor has a lower operating voltage than the second varistor , and wherein the first varistor has a lower energy absorption capacity than the second varistor , with the first varistor heating up more in the event of an overload and thereby causing the thermal disconnector to disconnect.2. The overvoltage protection device as set forth in claim 1 , wherein the operating voltage of the first varistor is less than or equal to ¼ of the operating voltage of the second varistor.3. The overvoltage protection device as set forth in claim 1 , wherein the first varistor has a first type of ceramic claim 1 , and wherein the second varistor has a type of ceramic that differs therefrom.4. The overvoltage protection device as set forth in claim 1 , wherein the first varistor has a first ceramic layer thickness claim 1 , and wherein the second varistor has a second ceramic layer thickness that differs therefrom.5. The overvoltage protection device as set forth in claim 1 , wherein the second varistor is associated with a cooling device.6. The overvoltage protection device as set forth in claim 1 , wherein the first varistor has a first ceramic layer surface area claim 1 , and wherein the second varistor has a second ceramic layer surface area that differs therefrom.7. The overvoltage ...

A VARISTOR AND PRODUCTION METHOD THEREOF

The present invention relates to a product and fabrication method for a varistor comprising a solid phase of zinc oxide particles substantially uniformly dispersed within a resin media. The varistor of the present invention is synthesised by mixing a substantially homogenous mixture of solid zinc oxide particles and a resin media, and heating the mixture under conditions to melt the resin and suspend the solid zinc oxide particles therein. 130-. (canceled)31. A varistor comprising a solid phase of zinc oxide particles substantially uniformly dispersed within a resin media , wherein the zinc oxide is present in the varistor in a range of 50 vol % to 80 vol % and wherein the ZnO or the varistor has not been sintered.32. The varistor of claim 31 , wherein the zinc oxide particles are substantially free of inorganic oxides other than zinc oxide.33. The varistor of claim 31 , wherein the zinc oxide particles are of a substantially uniform size claim 31 , wherein the size of the zinc oxide particles is in a range of 1 μm to 50 μm.34. The varistor of claim 31 , wherein the resin is a thermoplastic polymer.35. The varistor of claim 44 , wherein the resin is selected from the group consisting of polystyrene claim 44 , polyethylene claim 44 , polypropylene claim 44 , polyacetal claim 44 , polymethyl acrylate claim 44 , polycarbonate claim 44 , polyamide claim 44 , polytetrafluoroethylene claim 44 , tetrafluoroethylene claim 44 , perfluoroalkoxyethylene and any mixture thereof.36. The varistor of claim 31 , wherein the zinc oxide is present in the varistor in a range of 65 vol % to 70 vol %.37. The varistor of claim 31 , further comprising a pair of electrodes in contact with at least one surface of the varistor claim 31 , wherein said at least one surface of the varistor comprises a coating applied thereon.38. The varistor of claim 31 , wherein the varistor is capable of withstanding a surge voltage of at least 5000 V.39. The varistor of claim 31 , wherein the varistor has a ...

DISCONNECTION AND SWITCH-OVER DEVICE FOR OVERVOLTAGE PROTECTION, PARTICULARLY FOR DC SYSTEMS

The invention relates to a disconnection and switch-over device for overvoltage protection, particularly for DC systems, comprising at least one arresting element, and a thermal cut-off point incorporated into the electrical interconnect path of the arresting element, the thermal cut-off point comprising a movable mechanically prestressed conductor element that moves from a first position to a second position in the event of a cut-off, and when the second position is reached, an electrical switch-over to a safety device is generated, and the thermal cut-off point is formed by the movable conductor element and a stationary contact element, the movable conductor element being attached to the stationary contact element by a thermally releasable means. According to the invention, a completely electrical cut-off of the arresting element regarding the interconnect path only occurs when the movable conductor element has gone beyond the second position and has reached a third position, the safety device being arranged in series with the arresting element and the movable conductor element being designed as a wiper or sliding contact in relation to the second position, the second position being created by a bypass end point. 11124122. A disconnection and switch-over device for overvoltage protection , particularly for DC systems , having at least one arresting element and furthermore a thermal cut-off point () , wherein the thermal cut-off point () comprises a movable conductor element () which is under mechanical prestress and moves from a first position into a second position in the event of a cut-off , wherein , when the second position is reached , an electrical switchover to a safety device () is generated , the thermal cut-off point () is formed by the movable conductor element () and a stationary contact element , wherein the movable conductor element () is attached to the stationary contact element by a thermally releasable means ,characterized in that{'b': 5', '2', ' ...

Surge protection device

A circuit protection device includes a metal oxide varistor (MOV), a spring terminal and a thermal disconnect coupling the spring terminal to the MOV. A gas discharge tube (GDT) is coupled to the MOV. The spring terminal is biased such that upon occurrence of an overvoltage condition, heat generated by the MOV melts the thermal disconnect and allows the spring terminal to be displaced away from the MOV, thereby creating an opening circuit.

TERMINAL CONNECTING STRUCTURE AND ELECTRONIC COMPONENT

A terminal connecting structure is provided with each of the electrodes provided on the element forming the electronic component; and the terminals respectively having the connecting portions arranged along the electrodes respectively. In addition, the terminal connecting structure is provided with clearance forming portions configured to respectively form the respective clearances between the electrodes and the connecting portions respectively; and the connecting materials respectively provided in the clearances, the connecting material being configured to electrically connect the connecting portions and the electrodes respectively. 1. A terminal connecting structure comprising:an electrode provided on an element forming a component;a terminal having a connecting portion arranged along the electrode;a clearance forming portion configured to form a clearance between the electrode and the connecting portion; anda connecting material provided in the clearance, the connecting material being configured to electrically connect the connecting portion and the electrode.2. The terminal connecting structure according to claim 1 , wherein the clearance forming portion includes a projected portion projected from the connecting portion.3. The terminal connecting structure according to claim 2 , wherein the projected portion includes a ridge crossing the terminal.4. The terminal connecting structure according to claim 2 , wherein the projected portion includes a bulged portion formed with a part of the connecting portion claim 2 , the part of the connecting portion being bulged.5. The terminal connecting structure according to claim 4 , wherein the plurality of bulged portions are provided so as to be separated in a crossing direction crossing the terminal.6. The terminal connecting structure according to claim 2 , wherein the projected portion includes a bent portion claim 2 , the bent portion being formed by bending an end portion of the connecting portion in a direction ...

ANTI-SURGE STRUCTURE BUILT IN SWITCHES

An anti-surge structure built in switches includes three metal-oxide varistors disposed in an insulating body in stair-like arrangement. The metal-oxide varistors further has an insulating band surrounding a middle metal-oxide varistor and defining four isolated insulating areas within the insulating body, so as to avoid high voltage flashover and to protect the structure from external impacts. With the stair-like arrangement, each metal-oxide varistor has a connecting area for both ends of a metal strap to be welded thereon by low-temperature solder paste. When the low-temperature solder paste are melted by heat, a compressed spring element thereof is ejected to displace a pushing element thereof and to further detach two connecting points of the structure, so as to break a circuit connected by the structure. 1. An anti-surge structure built in switches , comprising:a housing;a first metal-oxide varistor, a second metal-oxide varistor, a third metal-oxide varistor, each having a first surface at a side thereof and a second surface at an opposite side thereof, said metal-oxide varistors partially overlapped in stair-like arrangement, the first surface of the first metal-oxide varistor and the second surface of the third metal-oxide varistor being left completely exposed, the second surface of the first metal-oxide varistor partially overlapped with the second surface of the second metal-oxide varistor with a first conductive element disposed in-between for electrical connection, the first surface of the second metal-oxide varistor partially overlapped with the first surface of the third metal-oxide varistor with a second conductive element disposed in-between for electrical connection;an insulating body including a first part and a second part assembled for the metal-oxide varistors to be disposed therein, the first part having a first open section and a third open section and the second part having a second open section and a fourth open section for externally ...

Composite Surge Arrester Assembly and Method of Construction

A composite surge arrester assembly and method of construction protects electrical devices from voltage spikes by limiting the voltage supplied to an electric device by shorting to ground any unwanted voltages above a safe threshold. The composite surge arrester assembly forms an arrester array from an alternating arrangement of deformable conductive contact plates, and metal oxide varistor (MOV) blocks. The contact plates bend and have various types of surfaces to create uniform contact with MOV blocks. The MOV blocks are dimensioned to minimize metal mass. An epoxy impregnated fiberglass reinforcement member wraps around the arrester array at an angle between 0° to 90°, and preferably 45°, relative to the axial disposition of arrester array, while also purging air pockets therebetween. The reinforcement member dampens acoustic shock waves from high current impulses while maintaining electrical contact between MOV blocks. A polymer housing encapsulates the epoxy and fiberglass reinforced arrester array. 1. A composite surge arrester module , the module comprising: a plurality of deformable conductive contact plates, the deformable conductive contact plates being deformable in shape;', 'a plurality of metal oxide varistor blocks disposed in an alternating arrangement between the deformable conductive contact plates,', 'whereby the deformable conductive contact plates are defined by a height of at least equal to 20 percent of a height of one of the metal oxide varistor blocks;', 'a pair of electrodes being disposed at opposite ends of the arrester array,', 'whereby the deformable conductive contact plates, the metal oxide varistor blocks, and the electrodes are disposed axially in series to form a continuous conduction path; and, 'an arrester array havinga polymer housing encasing the arrester array.2. The module of claim 1 , further comprising an epoxy impregnated fiberglass reinforcement member disposed to wrap around the arrester array in a configuration claim 1 , ...

INSULATOR ARRANGEMENT FOR AN OVERHEAD LINE

An insulator arrangement for an overhead line includes a suspension insulator for securing an overhead line to a tower and a line arrester arrangement which is disposed electrically parallel to the suspension insulator. The line arrester arrangement has a surge arrester, which is electrically connected to ground or earth potential, and a spark gap, which is connected to the surge arrester in series and which includes a first spark electrode connected to the overhead line and a second spark electrode connected to the surge arrester. The line arrester arrangement has an assembly or mounting insulator which can be secured to the overhead line. The first spark electrode is secured to a first securing device at a first end of the assembly or mounting insulator, and the second spark electrode is secured to a second securing device at a second end of the assembly or mounting insulator. 110-. (canceled)11. An insulator arrangement for an overhead line , the insulator arrangement comprising:a suspension insulator for securing the overhead line to a tower;a line arrester arrangement disposed electrically parallel to said suspension insulator;said line arrester arrangement including a mounting insulator to be secured to the overhead line, said mounting insulator having first and second ends;a first securing device disposed at said first end of said mounting insulator and a second securing device disposed at said second end of said mounting insulator;said line arrester arrangement including a surge arrester being electrically connected to earth potential;said line arrester arrangement including a spark gap connected in series with said surge arrester, said spark gap including first and second spark electrodes; andsaid first spark electrode being connected to the overhead line and being secured to said first securing device, and said second spark electrode being connected to said surge arrester and being secured to said second securing device.12. The insulator arrangement ...

OVERHEAT PROTECTION DEVICE AND VARISTOR

An overheat protection device and a varistor are provided. The overheat protection device comprises: a first electrode and a second electrode disposed to be spaced apart; a hot-melt wire located between the first electrode and the second electrode, the hot-melt wire being in electrical contact with the first electrode and the second electrode; and an insulator supporting the first electrode and the second electrode, wherein the hot-melt wire is melted into a liquid hot-melt material when the ambient temperature reaches a predetermined temperature, the liquid hot-melt material wets the first electrode and the second electrode, and the liquid hot-melt material does not wet the insulator at least at a portion located between the first electrode and the second electrode. 1. An overheat protection device , comprising:a first electrode and a second electrode disposed to be spaced apart;a hot-melt wire located between the first electrode and the second electrode, the hot-melt wire being in electrical contact with the first electrode and the second electrode; andan insulator supporting the first electrode and the second electrode, whereinthe hot-melt wire is melted into a liquid hot-melt material when the ambient temperature reaches a predetermined temperature, the liquid hot-melt material wets the first electrode and the second electrode, and the liquid hot-melt material does not wet the insulator at least at a portion located between the first electrode and the second electrode.2. The overheat protection device according to claim 1 , wherein the insulator comprises a plate-shaped or corrugated structure claim 1 , and the first electrode claim 1 , the second electrode claim 1 , and the hot-melt wire are disposed on one side of the plate-shaped or corrugated structure.3. The overheat protection device according to claim 2 , further comprising: a protective layer claim 2 , wherein the protective layer and the plate-shaped or corrugated structure enclose a cavity claim 2 , ...

DISCONNECTOR DEVICE FOR A SURGE ARRESTER AND A PROTECTION ASSEMBLY COMPRISING A SURGE ARRESTER CONNECTED TO SUCH A DISCONNECTOR DEVICE

This disclosure concerns a disconnector device for a surge arrester. The disconnector device comprises a housing encompassing a cavity and a disconnector unit provided inside the cavity. The disconnector device is connectable to the surge arrester and to ground potential. The housing forms an inner housing of a housing unit. The housing unit comprising an inner housing and an outer housing. The at least one ventilation opening of the inner housing is fluidly connected to the at least one further ventilation opening of the outer housing such that a labyrinth with a gas escape path for the gases from the operating disconnector cartridge is formed. 1. A disconnector device for a surge arrester , the disconnector device comprising:a housing encompassing a cavity;a disconnector unit provided inside the cavity, having a first terminal that is connectable to the surge arrester, a second terminal that is connectable to ground potential, a member provided at the second terminal and being fitted to the housing, and a disconnector cartridge provided in the cavity;wherein the housing forms an inner housing of a housing unit, the housing unit comprising further an outer housing, andwherein the inner housing comprises at least one ventilation opening connecting the cavity to an outside of the inner housing, andwherein the outer housing comprises at least one further ventilation opening connecting the outside of the inner housing to an outside of the disconnector device for releasing gases from the operating disconnector cartridge, andwherein the at least one ventilation opening and the at least one further ventilation opening are displaced against one another such that a labyrinth with a gas escape path for the gases from the operating disconnector cartridge is formed.2. A disconnector device according to claim 1 , wherein the labyrinth is designed such that no particle originating from the cavity can leave the cavity to the outside of the disconnector device unimpededly.3. A ...

SURGE PROTECTIVE DEVICE MODULES AND SYSTEMS INCLUDING SAME

A surge protective device (SPD) module includes a varistor and an electrical conductor. The varistor includes a hole defined therein and extending through the varistor. The electrical conductor extends through the hole in the varistor. 1. A surge protective device (SPD) module comprising:a varistor including a hole defined therein and extending through the varistor; andan electrical conductor extending through the hole in the varistor.2. The SPD module of wherein:the hole extends fully through a thickness of the varistor; andthe electrical conductor extends fully through the hole.3. The SPD module of wherein the hole has a depth of at least 1 mm.4. The SPD module of wherein the electric conductor is an electrode.5. The SPD module of wherein the electrode includes:a contact portion electrically connected to a contact surface of the varistor; andan integral extension portion extending through the hole.6. The SPD module of wherein the extension portion extends transversely to the contact portion.7. The SPD module of wherein the integral extension portion is a terminal tab and projects outwardly beyond a second surface of the varistor opposite the first contact surface.8. The SPD module of wherein the terminal tab projects outwardly beyond the second surface of the varistor a distance in the range of from about 0.1 mm to 15 mm.9. The SPD module of including:a module housing;first and second module electrical terminals mounted on the module housing, wherein the varistor is electrically connected between the first and second module electrical terminals; a disconnect spring elastically deflected and electrically connected to the extension portion of the electrode in the ready configuration; and', the solder is meltable in response to overheating in the SPD module; and', 'the disconnect spring is configured to electrically disconnect the varistor from the second module electrical terminal when the solder is melted., 'a solder securing the disconnect spring in electrical ...

Electrode component and method for fabricating the same

An electrode component includes a ceramic substrate, two electrode layers formed on two opposite surfaces of the ceramic substrate, two pins respectively connected to the two electrode layers, and an insulating layer enclosing the ceramic substrate, the electrode layers and a portion of each pin. Each electrode layer is formed of two or more base metal materials or alloys thereof, and the concentrations of the base metal materials progressively vary across the electrode layer. Accordingly, the production cost is lowered, environmental pollution caused by evaporation and thermal dissolution of organic solvent can be prevented, risk of separable electrode interface at high-voltage discharge is mitigated, and the fabrication process of the electrode layer is shortened while maintaining bonding strength between the electrode layers and the ceramic substrate and solderability between the electrode layers and the pins.

OVERVOLTAGE ARRESTER

Overvoltage arresters are used to protect against overvoltages in electrical energy transmission systems. An overvoltage arrester has a discharge column which extends along a longitudinal axis and is clamped in between end fittings by a plurality of tensile elements which radially surround the discharge column and are secured in the end fittings. At least one of the end fittings has a first thread for attaching a connecting bolt. Furthermore, the end fitting has a fitting body with a second thread for receiving a pressure screw for generating an axial force on the discharge column. Accordingly the first and second threads overlap along an axial section. 1. An overvoltage arrester , comprising:end fittings;a plurality of tensile elements;a discharge column extending along a longitudinal axis and clamped in between said end fittings by means of said plurality of tensile elements radially surrounding said discharge column and secured in said end fittings; andat least one of said end fittings having a pressure screw, a first thread for attaching to a connecting bolt and a fitting body with a second thread for receiving said pressure screw for generating an axial force on said discharge column, said first and second threads overlapping along an axial section.2. The overvoltage arrester according to claim 1 , wherein said first and second threads are disposed coaxially with respect to one another and with respect to the longitudinal axis.3. The overvoltage arrester according to claim 2 , wherein:said first thread is disposed in said fitting body;said pressure screw is embodied in a manner of a pot having a base which points toward said discharge column and a side wall extending away from said base and encloses a hollow interior space; andsaid fitting body having an axial depression formed therein and said second thread extends into said axial depression.4. The overvoltage arrester according to claim 3 , wherein said base has a tool receptacle for receiving a screwing tool ...

Surge Arrester Module And Surge Arrester

A surge arrester module including: first and second end electrodes; and a stack of cylindrical elements including at least one varistor block. The first end electrode includes a first part and a second part. A connecting element is provided between the first end electrode parts in order to keep them electrically connected to each other if a gap is formed between them. At least one clamping member is connected to the second end electrode and to the first part of the first end electrode in order to press them towards each other in the axial direction. The clamping member or at least one other clamping member is connected to the second end electrode and to the second part of the first end electrode in order to press them towards each other in the axial direction. 2. The surge arrester module according to claim 1 , characterized in that the electrical connecting element is flexible or elastic.3. The surge arrester module according to claim 2 , characterized in that the electrical connecting element is accommodated in a cavity formed by a recess in said first contact surface and/or a recess in said second contact surface.4. The surge arrester module according to claim 2 , characterized in that the electrical connecting element comprises a compression spring claim 2 , which at a first end abuts against a surface on the first part of the first end electrode and at an opposite second end abuts against a surface on the second part of the first end electrode.5. The surge arrester module according to claim 1 , characterized in that said at least one clamping member has the form of an endless loop and extends in a meander-like pattern around the stack with:at least two first meander-like loops, each of which extending from a shoulder on the second end electrode, over a shoulder on the first part of the first end electrode and back to another shoulder on the second end electrode, andat least two second meander-like loops, each of which extending from a shoulder on the second end ...

CHIP VARISTOR

An element body has first and second faces opposed to each other. A first conductor has one end exposed in a first face and the other end located in the element body. The second conductor has one end exposed in a second face and the other end located in the element body. The element body has a first element body section having the nonlinear voltage-current characteristics and a second element body section in which an electric current is more likely to flow than in the first element body section. The first element body section is located at least in part between the first conductor and the second conductor, in a direction in which the first conductor and the second conductor are separated from each other. The other end of the first conductor and the other end of the second conductor are located in the second element body section. 1. A chip varistor comprising:an element body having a first face and a second face opposed to each other;a first conductor arranged in the element body so as to have one end exposed in the first face and the other end located in the element body;a second conductor arranged in the element body so as to have one end exposed in the second face and the other end located in the element body and so as to be separated from the first conductor;a first terminal electrode arranged on the first face side of the element body and connected to the first conductor; anda second terminal electrode arranged on the second face side of the element body and connected to the second conductor,wherein the element body has a first element body section having the nonlinear voltage-current characteristics, and a second element body section in which an electric current is more likely to flow than in the first element body section,wherein the first element body section is located at least in part between the first conductor and the second conductor, in a direction in which the first conductor and the second conductor are separated from each other, andwherein the other ...

Tensioning device for a surge arrester, production method and surge arrester

A tensioning device is provided for a surge arrester having an end fitting and tensioner. The tensioning device has an axial clearance for receiving a tensioner and a region being conically tapered in axial direction to be introduced into a clearance of the end fitting being shaped for a substantially exact fit. The conically tapered region has delimitation walls defining the axial clearance for the tensioner being movable toward a clearance interior. An antifriction layer is applied to the surface of the conically tapered region. A production method for a surge arrester and a corresponding surge arrester are also provided.

OVERVOLTAGE PROTECTION DEVICE

A surge protection device having a housing, two connections for connection to a current path to be protected, and at least a first discharge conductor in the housing. In a normal state of the device, the first connection is electrically conductively connected to the first connection region of the discharge conductor, and the second connection is connected to the second connection region by at least one component. A metal safety element, which has two contact regions and a connecting region which connects the contact regions to one another, is arranged within the housing. The first contact region is electrically conductively connected to the second connection region and the second contact region is electrically conductively connected to the component in the normal state. The connecting region is a fuse by which brief pulse currents can be transmitted by the connecting region, whereas mains-frequency short-circuit currents overload the connecting region destroying it. 121-. (canceled)22. An overvoltage protection device , comprising:a housing,first and second terminals for electrical connection of the overvoltage protection device to a current path which is to be protected,at least one arrester which is located within the housing and having first and second connecting regions, the first terminal being connected in an electrically conductive manner to the first connecting region of the arrester and the second terminal being connected to the second connecting region of the arrester via at least one component, anda fusible element of metallic material within the housing, the fusible element having first and second contact regions and a connecting region which connects the contact regions to one another,wherein the first contact region of the fusible element is connected in an electrically conductive manner to the second connecting region of the arrester and the second contact region of the fusible element, in the normal state of the overvoltage protection device, is ...

Low temperature fabrication of lateral thin film varistor

A structure and method for fabricating a laterally configured thin film varistor surge protection device using low temperature sputtering techniques which do not damage IC device components contiguous to the varistor being fabricated. The lateral thin film varistor may include a continuous layer of alternating regions of a first metal oxide layer and a second metal oxide layer formed between two laterally spaced electrodes using a low temperature sputtering process followed by a low temperature annealing process.

Protection device and circuit protection apparatus containing the same

A protection device comprises a first planar substrate, a second planar substrate, a heating element, a fusible element and an absorbent element. The first substrate comprises a first surface, and the second substrate comprises a second surface facing the first surface. The heating element is disposed on the first surface, and the fusible element is disposed above the heating element. The absorbent element is disposed on the second surface and above the fusible element. When over-current or over-temperature occurs, the heating element heats up to melt and blow the fusible element and the absorbent element absorbs melted metal of the fusible element.

POWER SEMICONDUCTOR SWITCH CLAMPING CIRCUIT

A power semiconductor circuit is provided for clamping the voltage across the circuit when a power semiconductor switch is opened (i.e., turned off). The circuit may include a first surge arrester and a first semiconductor switch coupled in parallel with the power semiconductor switch. The first semiconductor switch is coupled in series with the first surge arrester. A second surge arrester may be coupled to the gate of the first semiconductor switch to control current flow through the first semiconductor switch and the first surge arrester. 1. A power semiconductor circuit , comprising:a power semiconductor switch;a first surge arrester coupled parallel with the power semiconductor switch;a first semiconductor switch coupled in series with the surge arrester and parallel with the power semiconductor switch; anda second surge arrester coupled to a gate of the first semiconductor switch and coupled to the first surge arrestor.2. The power semiconductor circuit according to claim 1 , wherein the second surge arrester is coupled in series with the first surge arrester.3. The power semiconductor circuit according to claim 1 , further comprising a capacitor coupled parallel with the first surge arrester and in series with the first semiconductor switch.4. The power semiconductor circuit according to claim 3 , wherein the capacitor is coupled in series with the second surge arrester.5. The power semiconductor circuit according to claim 4 , wherein the second surge arrester is coupled in series with the first surge arrester.6. The power semiconductor circuit according to claim 1 , further comprising a second semiconductor switch coupled parallel with the first semiconductor switch claim 1 , a third surge arrester being coupled to a gate of the second semiconductor switch and coupled to an output of the first semiconductor switch opposite from the first surge arrester.7. The power semiconductor circuit according to claim 1 , further comprising a second semiconductor switch ...

ELECTRIC CIRCUIT ARRANGEMENT FOR THE INPUT PROTECTION CIRCUIT OF A SWITCHING POWER SUPPLY AND A SWITCHING POWER SUPPLY

The invention relates to an electric circuit arrangement for the input protection circuit of a switching power supply, having a surge protection circuit, which is contacted with a supply voltage on an input side and to which a current-compensated choke is connected as a suppression component, said current-compensated choke being connected to a rectifier circuit comprising an energy storage means on an output side. 13012141618. An electric circuit arrangement () for the input protection circuit of a switching power supply , having a surge protection circuit () , which is contacted with a supply voltage on an input side and to which a current-compensated choke is connected as a suppression component () , said current-compensated choke being connected to a rectifier circuit () comprising an energy storage means () on an output side ,characterized in that{'b': 12', '100', '101', '100', '100', '101', '100, 'the surge protection circuit () is formed by a first and a second varistor (RV, RV), said first varistor (RV) being arranged upstream of the current-compensated choke (LD) and said second varistor (RV) being arranged downstream of the current-compensated choke (LD),'}{'b': '100', 'in that the current-compensated choke (LD) is dimensioned such that it has a smallest possible ohmic resistance and a largest possible inductivity,'}{'b': 16', '100', '104', '18', '100', '102, 'in that the rectifier circuit () comprises silicon diodes (D to D) having an average forward current of at least 5 Amperes, in that the energy storage means () is realized as a ceramic capacitor (CK, CK), and'}in that conducting path fuses covered by a casting compound are integrated in a conductor plate as surge protection devices.2. A switching power supply ,characterized by{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an electric circuit arrangement for the input protection circuit according to .'}3. The switching power supply according to claim 2 ,characterized bya power-factor-control ...

Integrated thermally protected varistor and discharge tube

The invention relates to an integrated component for protecting against temporary power surges and methods of manufacturing same. The component comprising: a first and a second conductive tab, each of which may be mounted on an electrical circuit; a gas discharge tube; a thermally protected varistor comprising: a varistor body, a first varistor electrode and a second varistor electrode that are positioned on either side of the varistor body, wherein the varistor body is able to rise in temperature when the voltage imposed between the first and the second varistor electrodes exceeds a voltage threshold; a thermal fuse, wherein an electrical connection is made via the thermal fuse.

LOW TEMPERATURE FABRICATION OF LATERAL THIN FILM VARISTOR

A structure and method for fabricating a laterally configured thin film varistor surge protection device using low temperature sputtering techniques which do not damage IC device components contiguous to the varistor being fabricated. The lateral thin film varistor may include of a continuous layer of alternating regions of a first metal oxide layer and a second metal oxide layer formed between two laterally spaced electrodes using a low temperature sputtering process followed by a low temperature annealing process. 1. A method of forming a lateral thin film varistor comprising: forming the first metal oxide layer comprised of a plurality of spaced apart sections of the first metal oxide on a dielectric layer,', 'forming a pair of isolation layer sections, comprised of an insulating material, on the dielectric layer, laterally outside the first metal oxide layer, and', 'forming the second metal oxide layer comprised of a plurality of spaced apart sections of the second metal oxide on the dielectric layer, each of the sections of the second metal oxide layer being located between a pair of the sections of the first metal oxide layer., 'forming a continuous layer comprising alternating regions of a first metal oxide layer and a second metal oxide layer between two laterally spaced electrodes using sputtering process followed by an annealing process, including'}2. The method of claim 1 , wherein the first metal oxide layer comprises zinc oxide.3. The method of claim 1 , further comprising doping the first metal oxide layer with aluminum oxide.4. The method of claim 1 , wherein the second metal oxide layer comprises bismuth oxide.5. The method of claim 1 , further comprising doping the second metal oxide layer with aluminum oxide.6. The method of claim 1 , wherein the annealing process is carried out in an inert gas atmosphere.7. The method of claim 1 , wherein the annealing process comprises heating the continuous layer to a temperature not exceeding a maximum ...

Three Phase Surge Protection Device

A three phase surge protection device is disclosed. In an embodiment a device include a stack comprising a first varistor, a second varistor and a third varistor, wherein the varistors are electrically connected to form a circuit and a first thermal disconnect configured to interrupt the circuit when a temperature of the first thermal disconnect exceeds a predefined temperature.

Arrester Temperature Monitor

An instrumented electric power arrester includes a temperature sensor, wireless transmitter, and a visual over-temperature indicator. A disk shaped module, a replacement varister block, or a dummy block containing the sensor/transmitter is placed between varister blocks inside the arrester housing. A strap-on module is attached to the outside of the arrester housing. The sensor/transmitter utilizes a harvesting power supply that draws electric power for the electronics from the power line protected by the arrester. An ambient temperature sensor may be utilized to enhance accuracy. The temperature sensor/transmitter typically sends arrester monitoring data wirelessly to an RTU or handheld unit located outside the arrester, which relays the monitoring data to an operations control center that scheduled replacement of the arrester based on the monitoring data. A surge counter keeps track of the number of equipment and lightening related temperature surges experienced by the arrester. 1. A temperature sensor/transmitter for an electric power arrester configured for connection to an electric power line , comprising:a temperature sensor;electronics including a processor, a memory, a wireless transmitter, a transmit capacitor, and an antenna; anda harvesting power supply for supplying the electronics from electric power harvested from the electric power line.2. The temperature sensor/transmitter of claim 1 , further comprising a disk-shaped PC board carrying the temperature sensor and the electronics configured for placement between varister blocks inside the arrester.3. The temperature sensor/transmitter of claim 1 , further comprising a varister block carrying the temperature sensor and the electronics configured for placement inside the arrester.4. The temperature sensor/transmitter of claim 1 , further comprising a dummy block having a similar size to a varister block inside the arrester claim 1 , carrying the temperature sensor and the electronics configured for ...

SURGE PROTECTION DEVICE, COMPRISING AT LEAST ONE SURGE ARRESTER AND ONE SHORT-CIRCUIT SWITCHING DEVICE WHICH IS CONNECTED IN PARALLEL WITH THE SURGE ARRESTER, CAN BE THERMALLY TRIPPED AND IS SPRING-PRETENSIONED

The invention relates to a surge protection device, comprising at least one surge arrester and one short-circuit switching device which is connected in parallel with the surge arrester, can be thermally tripped and is spring-pretensioned, wherein the abovementioned means form one physical unit. The thermal tripping means is arranged in the region where heating of the surge arrester is expected when it is overloaded, and operating or surge current does not flow through said thermal tripping means. The thermal tripping means is in the form of a stop part which releases an unlocking slide of the switching device in the event of thermal overload. The switching device has two opposite contact pieces, wherein at least one of the contacts is of moveable design and is under spring pretension in the closing direction of the switching device. The opening state of the switching device is ensured by the unlocking slide and is released by the thermal tripping means for closing the switching device. 15645441666668446a;bb. A surge protection device , comprising at least one surge arrester () and a short-circuit switching device () , which is connected in parallel with the surge arrester , can be thermally tripped , and is spring-pretensioned , wherein the above-mentioned means form a module , the thermal tripping means (K) is arranged in the region of the heating to be expected of the surge arrester () in the event of the overload thereof and is designed as a stop part through which operating current or impulse current does not flow , and which releases an unlocking slide (; ) of the switching device () in the event of thermal overload , characterized in that the switching device () has two opposing , in particular interlocking contact parts () , wherein at least one of the contact parts () is embodied as movable and is under spring pretension () in the closing direction of the switching device , furthermore the open state of the switching device is secured by the unlocking slide ...

THERMAL METAL OXIDE VARISTOR CIRCUIT PROTECTION DEVICE

Exemplary embodiments of the present invention are directed to a circuit protection device, A circuit protection device may comprise a housing defining a cavity and a metal oxide varistor (MOV) disposed within the cavity. The circuit protection device may further comprise a first terminal electrically attached at a first end to the MOV by solder and extending outside of the housing at a second end. An arc shield is disposed within the housing between the first end of the first terminal and at least partially over the solder. The circuit protection device may further comprise a spring configured to bias the arc shield against a micro switch having an indicator portion disposed at least partially outside of the housing. When a voltage surge condition occurs, the MOV changes from a non-conductive state to a conductive state and current flows between the first terminal and a second terminal where the heat generated by the current flowing through the varistor melts the solder and the first end of the first terminal electrically separates from the varistor. 1. A circuit protection device comprising:a housing defining a cavity;a metal oxide varistor disposed within said cavity and including a protrusion extending from a surface of said metal oxide varistor;a terminal electrically attached at a first end to said protrusion by solder and a second end extending outside of said housing, said terminal forming a spring biased away from said protrusion;a micro switch having an indicator portion disposed at least partially outside of said housing, a portion of said terminal forcing a trigger portion of said micro switch in a first position corresponding to a normal operating condition of said circuit protection device.2. The circuit protection device of wherein upon the occurrence of a fault condition claim 1 , current through said metal oxide varistor heats said solder sufficiently to release said first end of said terminal away from said protrusion causing said portion of said ...

VARISTOR

A varistor includes a varistor body, a first terminal disposed on one side of the varistor body, a second terminal disposed on the other side of the varistor body, a first electrode disposed on an upper portion of the varistor body, electrically connected to the first terminal, and extending towards the other side of the varistor body, and a second electrode disposed on a lower portion of the varistor body, electrically connected to the second terminal, and extending towards the one side of the varistor body. 1. A varistor , comprising:a varistor body;a first terminal disposed on one side of the varistor body;a second terminal disposed on the other side of the varistor body;a first electrode disposed on an upper portion of the varistor body, electrically connected to the first terminal, and extending towards the other side of the varistor body; anda second electrode disposed on a lower portion of the varistor body, electrically connected to the second terminal, and extending towards the one side of the varistor body.2. The varistor of claim 1 ,wherein the varistor body comprises ZnO, andwherein an internal space of the varistor body is filled with a non-conductive material or a semiconductor material and does not include an internal electrode disposed in the internal space.3. The varistor of claim 1 , further comprising:a first insulating layer disposed on upper portions of the varistor body and the first electrode; anda second insulating layer disposed on lower portions of the varistor body and the second electrode.4. The varistor of claim 3 , further comprising:a third insulating layer disposed on an upper portion of the first insulating layer and being harder than the first insulating layer; anda fourth insulating layer disposed on a lower portion of the second insulating layer and being harder than the second insulating layer.5. The varistor of claim 3 , further comprising:a third insulating layer disposed on an upper portion of the first insulating layer and ...

LOW LEAKAGE TRANSIENT OVERVOLTAGE PROTECTION CIRCUIT USING A SERIES CONNECTED METAL OXIDE VARISTOR (MOV) AND SILICON CONTROLLED RECTIFIER (SCR)

Transient overvoltage suppression is provided by discharging through a Metal Oxide Varistor (MOV) and Silicon Controlled Rectifier (SCR) which are connected in series between power supply lines. The SCR has a gate that receives a trigger signal generated by a triggering circuit coupled to the power supply lines. A trigger voltage of the triggering circuit is set by a Transil™ avalanche diode. 1. A circuit , comprising:a first power supply line and a second power supply line configured to receive a direct current (DC) voltage;a Metal Oxide Varistor (MOV) connected between the first power supply line and a first node;a Silicon Controlled Rectifier (SCR) having an anode terminal connected to the first node and a cathode terminal connected to the second power supply line, the SCR having a gate terminal; anda trigger circuit connected between the first and second power supply lines and having an output connected to the gate terminal of the SCR, wherein the triggering circuit has a trigger voltage for detecting a transient voltage surge of the DC voltage that is set by a Transil™ avalanche diode.2. The circuit of claim 1 , wherein the gate terminal is a cathode gate terminal.3. The circuit of claim 1 , wherein the tiggering circuit comprises:a cathode terminal of the Transil™ avalanche diode connected to the first power supply line;an anode terminal of the Transil™ avalanche diode connected to a second node;a first resistor connected between the second node and the gate terminal of the SCR; anda second resistor connected between the second node and the second power supply line.4. The circuit of claim 1 , wherein a break down voltage of the Transil™ avalanche diode is substantially equal to a voltage drop across the MOV.5. A method claim 1 , comprising:sensing a transient overvoltage condition for a direct current (DC) voltage applied across a pair of power supply lines using a Transil™ avalanche diode;triggering turn on of a Silicon Controlled Rectifier (SCR) in response ...

Integrated EMI Filter and Surge Protection Component

An improved electronic component is described. The electronic component has a capacitor with first planer internal electrodes in electrical contact with a first termination and second planer internal electrodes in electrical contact with a second termination. A dielectric is between the first planer electrodes and the second planer internal electrodes. The electronic component further comprises at least one of: an inductor comprising a conductive trace wherein said conductive trace is between the first termination and a third termination; and an overvoltage protection component comprising: a third internal electrode contained within the dielectric and wherein the third internal electrode is electrically connected to the first termination; a fourth internal electrode contained within the ceramic and electrically connected to a fourth termination; and a gap between the third internal electrode and the fourth internal electrode.

ELECTRIC SHOCK PROTECTION DEVICE, METHOD FOR MANUFACTURING SAME, AND PORTABLE ELECTRONIC DEVICE HAVING SAME

Provided are an electric shock protection device and method of manufacturing the same. The electric shock protection device may include a capacitor unit comprising multiple sheet layers and multiple capacitor electrodes provided on the sheet layers and has an electric shock prevention function and a communication signal transmission function; a pair of soldering electrodes formed on the sheet layer disposed at an outermost side among the sheet layers, extend from both ends toward a center of the capacitor unit, and are formed as electrodes for co-firing; a pair of terminal electrodes which are provided at both ends of the plurality of sheet layers and connecting the capacitor electrodes to the pair of soldering electrodes; a varistor connected to the pair of soldering electrodes through solders and formed as a single component; and a molding portion molded on the varistor, the pair of soldering electrodes, and one side of each of the terminal electrodes. 1. An electric shock protection device comprising:a capacitor unit which includes a plurality of sheet layers and a plurality of capacitor electrodes provided on the sheet layers and has an electric shock prevention function and a communication signal transmission function;a pair of soldering electrodes which are formed on the sheet layer disposed at an outermost side among the plurality of sheet layers, extend from both ends toward a center of the capacitor unit, and are formed as electrodes for co-firing;a pair of terminal electrodes which are provided at both ends of the plurality of sheet layers and connect the plurality of capacitor electrodes to the pair of soldering electrodes;a varistor which is connected to the pair of soldering electrodes through solders and is formed as a single component; anda molding portion which is molded on the varistor, the pair of soldering electrodes, and one side of each of the terminal electrodes.2. The electric shock protection device of claim 1 , wherein:the electrode for co- ...

LEAKAGE CURRENT DETECTION AND INTERRUPTION (LCDI) DEVICE WITH IGNITION CONTAINMENT FEATURES

A Leakage Current Detection and Interruption (LCDI) device, for use as a safety device for a load cable. The LCDI circuit card assembly incorporates a load input cavity having fire retardant materials surrounding the load input terminals, a separated containment cavity structure for a first Metal Oxide Varistor (MOV), and a contact actuator which encases the switch or contact arm at the source input section of the LCDI. The circuit design incorporates redundant safety features for containment of spurious ignitions. 1. A leakage current detection and interruption (LCDI) device , for use as a safety device for a load cable , said load cable connecting a power source with a load , said load cable comprising a power line , a neutral line , a ground line , and a metal sheath which surrounds the power line and the neutral line , said LCDI device comprising a circuit card assembly including at least one Metal Oxide Varistors (MOVs) and adaptable for positioning within an external housing , the housing having a top cover , a bottom cover and a wire cover , the LCDI device comprising:the circuit card assembly having a top, bottom, a load input section, said load input section comprising load input conductors, and a source input section, said circuit card assembly further including a circuit board, said load input section including a plurality of containment cavities formed on one end of said circuit board, at least one containment cavity comprising a load input conductor containment cavity, including a plurality of walls to surround said load input conductors, and at least one containment cavity including a plurality of walls to surround said at least one Metal Oxide Varistor (MOV);said source input section including an actuating member positioned on an opposite end to the one end of said circuit board, said actuating member including a plurality of containment cavities therein, said plurality of containment cavities of said actuating member including a plurality of walls, ...

Rack-mountable, tiltable surge protector housings for power surge protector accessibility, and related assemblies, methods, and base station equipment

Rack-mountable, tiltable surge protector housings for power surge protector accessibility are disclosed. Related assemblies, methods, and base station equipment are also disclosed. The surge protector housings may be installed in an equipment rack to support the surge protector housing for use. The surge protector housings support one or more surge protectors for receiving input power through the surge protector housing. The surge protector housing is configured to provide surge protected output power from the received input power. The surge protector housings include a front section having surge protectors supported therein. The front section can be tilted to provide convenient access to the surge protectors, such as during installation and replacement of surge protectors, and connecting power to and disconnecting power from the surge protectors.

VARISTOR DEVICE

A varistor device includes a main body, a conductive area, a specific-melting-point metallic pin, and an elastic unit. The main body has a first surface, and the conductive area is located at the first surface. The specific-melting-point metallic pin has a first section and a second section. The first section and the second section are one-piece formed. The first section is fixedly disposed on the conductive area. The second section has a specific melting point such that the second section melts when a current flows between the first surface and the second section so as to expose the second section to a temperature greater than the specific melting point. The elastic unit has an end connected to the second section, and the elastic unit provides an elastic force to the second section to break the second section so as to cut off the current when the second section melts. 1. A varistor device , comprising:a main body having a first surface;a conductive area located at the first surface;a specific-melting-point metallic pin having a first section and a second section, wherein the first section and the second section are one-piece formed, the first section is fixedly disposed on the conductive area, the second section has a specific melting point such that the second section melts when a current flows between the first surface and the second section as to expose the second section to a temperature greater than the specific melting point; andan elastic unit having an end connected to the second section, wherein the elastic unit provides an elastic force to the second section to break the second section as to cut off the current when the second section melts.2. The varistor device according to claim 1 , wherein the specific melting point ranges from a melting point of a soldering material to a melting point of the main body.3. The varistor device according to claim 1 , wherein the specific-melting-point metallic pin is formed of a material including a primary metal ...

CHIP RESISTOR COMPONENT

A chip resistor component, includes: a substrate having one surface, and one side surface and the other side surface facing each other in one direction; an terminal including an internal electrode disposed on the one surface, and an external electrode disposed on the one side surface to be connected to the internal electrode; a resistive layer disposed on the one surface, and including an outermost pattern connected to the internal electrode; and a protective layer disposed on the one surface to cover the resistive layer. The outermost pattern of the resistive layer has a first region in contact with the internal electrode and a second region extending, in the one direction, from the first region towards the other side surface. A ratio of a length of the second region in the one direction to a length of the chip resistor component in the one direction is 0.02 or more. 1. A chip resistor component , comprising:a substrate having one surface, and one side surface and the other side surface respectively connected to the one surface and facing each other in one direction;a first terminal including a first internal electrode disposed on the one surface of the substrate, and a first external electrode disposed on the one side surface of the substrate to be connected to the first internal electrode;a resistive layer disposed on the one surface of the substrate, and including a first outermost pattern connected to the first internal electrode; anda protective layer disposed on the one surface of the substrate to cover the resistive layer,wherein the first outermost pattern of the resistive layer has a first region in contact with the first internal electrode, and a second region extending, in the one direction, from the first region towards the other side surface,wherein a ratio of a length of the second region in the one direction to a length of the chip resistor component in the one direction is 0.02 or more.2. The chip resistor component of claim 1 , wherein the second ...

Surge protector

The present invention is to provide a surge protector which includes an insulating base having a receiving space and a spare space therein; a dielectric material provided in the receiving space; a first conductive plate enclosed in the insulating base, contacted with one side of the dielectric material and having a first pin formed out of the insulating base; a second conductive plate enclosed in the insulating base and having a first side contacted with the other side of the dielectric material, and a temperature-actuated metal plate enclosed in the insulating base and having a second pin formed out of the insulating base. The temperature-actuated metal plate has a temperature-actuated portion which lies against a second side of the second conductive plate when in a low-temperature state, however, when in a high-temperature state, the temperature-actuated portion curves toward the spare space and thus separates from the second conductive plate.

METAL OXIDE VARISTOR DESIGN AND ASSEMBLY

A stacked arrangement of metal oxide varistors includes a plurality of metal oxide varistors with each metal oxide varistor of the plurality of metal oxide varistors having a first lead on a first surface and a second lead on a second surface, the first surface and the second surface being opposite facing surfaces of each metal oxide varistor. The first lead and the second lead of adjacent metal oxide varistors, when placed in a stacked arrangement, are arranged, preferably asymmetrically, and having the same voltages so as not to interfere with one another, thereby result in a more compact stacking of metal oxide varistors, as compared to arrangements known to the state of the art. The stacked arrangement of metal oxide varistor can be mounted on printed circuit boards, in addition to a variety of other uses. 1. A stacked arrangement of metal oxide varistors , comprising:a first metal oxide varistor having a first lead on a first surface and a second lead on a second surface, said first surface and said second surface being opposite facing surfaces of said first metal oxide varistor; and,a second metal oxide varistor having a first lead on a first surface and a second lead on a second surface, said first surface and said second surface being opposite facing surfaces of said second metal oxide varistor, said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor being adjacent one another when placed in a stacked arrangement without said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor interfering with one another due to said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor having equal voltages.2. The stacked arrangement of metal oxide varistors according to claim 1 , wherein said second lead of said first metal oxide varistor and said first lead of said second metal oxide varistor are mounted asymmetrically ...

Energy saving device with inductive capacitive reactor for high amperage uses

An energy saving device with at least one inductor capacitive reactor for high amperage uses functions as a multifaceted transformer with inductor and capacitor functionalities iteratively. It includes a stacked group of hollow centered continuous loop components follows: (i) a first ferrite toroidal component; (ii) a first doped separator component; (iii) a non-magnetic conductive metal toroidal component with protrusions and notches; (iv) a second separator component, doped or non-doped; (v) a non-magnetic conductive metal toroidal component without protrusions; (vi) a third separator component, doped or non-doped; (vii) a second non-magnetic conductive metal toroidal component with protrusions and notches, wherein the second non-magnetic conductive metal toroidal component is rotated relative to the first non-magnetic conductive metal toroidal component; (viii) a fourth separator component, being selected from the group consisting of doped and non-doped; (ix) a second ferrite toroidal component; (x) a first incoming wire being wrapped around a portion of the stacked group, being a hot wire; (xi) a second incoming wire being wrapped around a portion of the stacked group, being a ground wire. 1. An energy saving device for reducing electrical consumption utilizing at least one inductor capacitive reactor , for commercial and similar amperage needs , wherein that at least one reactor functions as a multifaceted transformer with both inductor and capacitor functionalities and that operates iteratively , which comprises:a.) components of an energy saving device that includes: an EMI filter; surge suppression mechanism; harmonic filters; a snubber network filter; and storage components; and (i) a first ferrite toroidal component;', '(ii) a first separator component, being a doped separator component;', '(iii) a non-magnetic conductive metal toroidal component having a plurality of protrusions with notches between said protrusions;', '(iv) a second separator component, ...

Electrical Insulator And Method Of Production

An electrical insulator including: a first connector of an electrically conducting material; a second connector of an electrically conducting material; and an electrically insulating material being arranged between the first connector and the second connector, insulating the connectors from each other; wherein a part of the first connector extends past a part of the second connector, partly enveloping part of the second connector. The invention also relates to a surge arrester arrangement, to a use of an electrical insulator for insulating a surge arrester, and to a method for production of such an electrical insulator.

ARRANGEMENT FOR NON-REVERSIBLE DETECTION AND DISPLAY OF ELECTRICAL OVERCURRENTS OR CURRENT LIMIT VALUES BY MEANS OF A PRE-FINISHED CONDUCTOR

The invention relates to an arrangement for non-reversible detection and display of electrical overcurrents or current limit values by means of a pre-finished conductor. The conductor according to the invention has at least two conductor sections, spaced apart from each other and extending parallel to each other, which are designed for current to flow through in the same direction. At least one of the parallel conductor sections has a protrusion, a nose, or similar blocking element, which limits the path of movement of a mechanical display or switching element, such that the electromagnetic force acting on the parallel conductor sections during the flow of current transitions the blocking element into a release position in respect of the path of movement of the mechanical display or switching element. Such an arrangement can be used particularly advantageously as a prior damage indicator in surge arresters. 2. The arrangement according to claim 1 ,characterized in that{'b': 4', '5, 'the blocking element (; ) is formed as a stop.'}3. The arrangement according to claim 1 ,characterized in that{'b': 2', '3, 'the blocking element is a deformation of the parallel conductor sections (; ) realized by embossing or punching.'}4. The arrangement according to claim 1 ,characterized in that{'b': '1', 'the conductor () is formed as a flat conductor or tape conductor which has a two-dimensional middle section merging into two parallel conductor stripes.'}5. The arrangement according to claim 4 ,characterized in that{'b': 6', '1, 'a displaceable sleeve () is mounted on the conductor ().'}6. The arrangement according to claim 5 ,characterized in that{'b': 6', '4', '5', '4', '5', '6, 'the path of displacement of the sleeve () is limited by the blocking element (; ), wherein the blocking element (; ) releases the path of displacement of the sleeve () when a current flow limit value (I) is reached.'}7. The arrangement according to claim 5 ,characterized in that{'b': 6', '10', '9, 'the ...

VARISTORS

An electrical connector provided with a varistor, and to a protection device for incorporation into an electrical connector and having a varistor comprising at least two pins including a first pin which is a live () or neutral () pin and a second pin which is an earth pin (), the first and second pins () extending through respective apertures () in a varistor plate () which has first and second faces, wherein a first conductive layer on the first face of the varistor plate () connects electrically to the first pin () and a second conductive region on the second face of the varistor plate connects electrically to the second pin (), so that in response to an excessive voltage across the first () and second () pins the varistor plate will conduct electricity between the first () and second () pins. The arrangement can easily be adopted in connectors conforming to existing standards, such as existing mains electrical plugs (). 131-. (canceled)32500514. A protection device for incorporation into an electrical connector () , the protection device comprising a varistor plate () having first and second faces and having:{'b': 502', '504', '500', '502', '504, 'a first through-going aperture for receiving a live () or neutral () pin of the electrical connector () and a first conductive layer on the first face of the varistor plate for electrically connecting the first face of the varistor plate to the live () or neutral () pin;'}{'b': '506', 'a second through-going aperture for receiving a ground pin of the electrical connector and a second conductive layer on the second face of the varistor plate for electrically connecting the second face of the varistor plate to the ground pin (),'}{'b': 502', '504', '506', '514', '502', '504', '506, 'so that in use, and in response to an excessive voltage across the live () or neutral pin () and the ground pin (), the varistor plate () will conduct electricity from the live () or neutral () pin to the ground () pin.'}33514. The protection ...

Method for Producing a Surge Arrester, Apparatus for Carrying out the Method, and Surge Arrester Produced in Accordance with the Method

The invention relates to a method for producing a surge arrester, comprising the steps of: 1. Method for producing a surge arrester , comprising the steps of:{'b': 1', '3', '5, 'providing a module () comprising one or more varistor blocks () and two end armatures ();'}{'b': 1', '7', '21, 'introducing the module () into a mould () in order to form a housing ();'}{'b': 7', '9, 'evacuating the mould () in a vacuum chamber ();'}{'b': 11', '7', '9, 'introducing liquid silicone () into the evacuated mould () in the vacuum chamber ();'}{'b': 7', '11, 'baking the mould () in order to crosslink the silicone (); and'}{'b': '7', 'removing the surge arrester from the mould ().'}211913. Method according to claim 1 , in which the mould claim 1 , after being filled with the liquid silicone () claim 1 , is removed from the vacuum chamber () and introduced into a furnace () for the baking step.37. Method according to claim 1 , in which the silicone is introduced into the mould () substantially at zero pressure.47. Method according to claim 1 , in which the silicone is degassed before being introduced into the mould ().51535. Method according to claim 1 , in which the module has a plurality of glass fibre-reinforced plastic rods () which hold the one or the several varistor blocks () between the end armatures ().697. Method according to claim 1 , in which the pressure in the vacuum chamber () is 250 mbar or less claim 1 , preferably 1.0 mbar or less claim 1 , particularly preferably 5 mbar or less claim 1 , when the silicone is introduced into the mould ().77. Method according to claim 1 , in which the mould () is manufactured from aluminum.8. Apparatus for carrying out the method according to claim 1 , wherein the apparatus comprises:{'b': 9', '7, 'a vacuum chamber () for accommodating the mould ();'}{'b': '17', 'a mixing device () for mixing and supplying the silicone;'}{'b': '19', 'a vacuum pump () for degassing the silicone;'}{'b': 23', '9, 'a vacuum pump () for applying a ...

SURGE ABSORBING ELEMENT

A surge absorbing element includes a varistor substrate, a pair of electrodes that are electrically connected to both end faces of the varistor substrate, respectively, to sandwich the varistor substrate, external leads that electrically connect to the paired electrodes, respectively, exterior members that cover the electrodes, and a thermal expansion body that is provided between the paired electrodes and that irreversibly expands with heat generated by the varistor substrate to separate at least one of the paired electrodes from the varistor substrate. A temperature at which the thermal expansion body starts expanding is, for example, equal to or higher than 180° C. 16-. (canceled)7. A surge absorber comprising:a varistor substrate;a pair of electrodes that are electrically connected to both end faces of the varistor substrate, respectively, to sandwich the varistor substrate;external wirings that electrically connect to the paired electrodes, respectively;exterior coverings that cover the electrodes; anda thermal expander that is provided between the paired electrodes and that irreversibly expands with heat produced by the varistor substrate to separate at least one of the paired electrodes from the varistor substrate, whereinthe thermal expander is configured to keep an expanded state even after cooled and to enable a mark provided in the thermal expander to be viewable from outside of the thermal expander when the thermal expander expands.8. A surge absorber comprising:a varistor substrate;a pair of electrodes that are electrically connected to both end faces of the varistor substrate, respectively, to sandwich the varistor substrate;external wirings that electrically connect to the paired electrodes, respectively;exterior coverings that cover the electrodes; anda thermal expander that is provided between the paired electrodes and that irreversibly expands with heat produced by the varistor substrate to separate at least one of the paired electrodes from the ...

METHOD FOR PRODUCING AN ELECTRICAL COMPONENT, AND ELECTRICAL COMPONENT

A method for producing an electrical component, comprises providing a ceramic semiconducting base body () having a surface (O) and a first side area (S) lying opposite the surface (O), wherein a metallic layer () is contained within the base body. After at least two further metallic layers () have been arranged separately from one another on the side area (S) of the base body, the arrangement is sintered. An electrically insulating layer () is arranged between the at least two further metallic layers (). A respective contact layer () is arranged on the metallic layers () by means of a chemical process. In this case, the material of the base body () is removed proceeding from the surface (O) of the base body () at most as far as the metallic layer () arranged within the base body. 1. A method for producing an electrical component , comprising:{'b': 10', '10', '10', '10', '40, 'i': 'a', 'providing a ceramic semiconducting base body () having a surface (O) and a first side area (S) lying opposite the surface (O), wherein a metallic layer () is contained within the base body,'}{'b': 210', '10, 'i': 'a', 'arranging at least two further metallic layers () separately from one another on the side area (S) of the base body,'}{'b': 10', '210, 'sintering the arrangement composed of the base body () and the further metallic layers (),'}{'b': 30', '10', '210, 'i': 'a', 'arranging an electrically insulating layer () on the first side area (S) between the at least two further metallic layers (),'}{'b': 220', '210', '10', '10', '10', '40, 'arranging a respective contact layer () on the at least two further metallic layers () by means of a chemical process, wherein the material of the base body () is removed by the chemical process proceeding from the surface (O) of the base body () at most as far as the metallic layer () arranged within the base body.'}2. The method according to claim 1 ,{'b': 40', '10', '1', '2, 'wherein the metallic layer () arranged within the base body () is ...

Voltage surge protection device and high voltage circuit breakers

A voltage surge protection device for protection of a high voltage device includes a varistor having a first part and a second part separated by varistor material. The voltage surge protection device further includes an expandable member arranged to act on a movable electrical contact for short-circuiting the voltage surge protection device upon a threshold voltage being applied between the first part and the second part of the varistor. A high voltage circuit breakers includes one or more semiconductor devices connected in series and the voltage surge protection device connected in parallel thereto.

Multi-terminal Surge Arrester

A multi-terminal surge arrester which includes an active part extending along a longitudinal direction of the surge arrester, a first electrode resting against a first end of the active part, and a second electrode resting against a second end of the active part, which second end opposes the first end in the longitudinal direction of the surge arrester. The surge arrester further includes an insulating fixing device mechanically connecting and fixing the first electrode and the second electrode, and an insulating housing arranged around the active part. The active part includes at least two metal-oxide based varistor elements and a further electrode arranged between the at least two varistor elements, which further electrode provides an externally accessible electrical connection. Therein, the surge arrester is adapted for being insulated by surrounding air.

Electric appliances with inductive capacitive reactor

A portable electric appliance with an energy saving device has an inductive capacitive reactor for low amperage use, acting as a multifaceted transformer with inductor and capacitor functionalities iteratively, includes: a stacked group of hollow centered continuous loop components sequentially arranged as follows: (i) a first ferrite toroidal component; (ii) a first separator component, being a doped separator component; (iii) a non-magnetic conductive metal toroidal component having a plurality of protrusions with notches between said protrusions; (iv) a second separator component, selected from the group consisting of doped and non-doped; (v) a second ferrite toroidal component. Another inductive capacitive reactor for industrial and commercial appliances with high amperage use has similar components as just stated and also has (v) a non-magnetic conductive metal toroidal component without protrusions; (vi) a third separator component; (vii) a second non-magnetic conductive metal toroidal component having a plurality of protrusions with notches between said protrusions, (viii) a fourth separator component; and (ix) a second ferrite toroidal component. 1. A portable electric appliance with an energy saving device , which comprises:A) a structure with an electric consuming component;B) a power cord having a first end connected to said electric consuming component and a second end terminating with a plug; a.) components of an energy saving device that includes: an EMI filter; surge suppression mechanism; harmonic filters; a snubber network filter; and storage components; and', 'b.) at least one inductive capacitive reactor, wherein said at least one inductive capacitive reactor includes a stacked group of hollow centered continuous loop components arranged sequentially., 'C) an energy saving device electrically connected to said cord between said plug and said electric consuming component, for reducing electrical consumption utilizing at least one inductive ...

Overvoltage Protection Device

In one embodiment, an overvoltage protection device may include a metal oxide varistor (MOV) having a first surface and a second surface; a semiconductor substrate having a first outer surface and a second outer surface and comprising a semiconductor crowbar device comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate being disposed on a first side of the metal oxide varistor; a conductive region disposed between the second surface of the MOV and the first outer surface of the semiconductor substrate; a first electrical contact disposed on the first surface of the MOV; and a second electrical contact disposed on the second outer surface of the semiconductor substrate. 1. An overvoltage protection device , comprising:a metal oxide varistor (MOV) having a first surface and a second surface;a semiconductor substrate having a first outer surface and a second outer surface and comprising a semiconductor crowbar device comprising a plurality of semiconductor layers arranged in electrical series to one another, the semiconductor substrate being disposed on a first side of the metal oxide varistor;a conductive region disposed between the second surface of the MOV and the first outer surface of the semiconductor substrate;a first electrical contact disposed on the first surface of the MOV; anda second electrical contact disposed on the second outer surface of the semiconductor substrate.2. The overvoltage protection device of claim 1 , wherein the metal oxide varistor and the semiconductor crowbar device are in electrical series between the first electrical contact and the second electrical contact.3. The overvoltage protection device of claim 1 , wherein the metal oxide varistor comprises a first standoff voltage claim 1 , the semiconductor crowbar device comprises a second standoff voltage claim 1 , and the overvoltage protection device comprises a total standoff voltage equal to a sum of the first standoff ...

Varistor Component and Method for Securing a Varistor Component

A varistor component and a method for securing a varistor component are disclosed. In an embodiment a varistor component includes a first external contact, a second external contact, a varistor electrically connected to the first external contact, a path between the varistor and the second external contact and an active releasing device having a shutter and a heat sensitive element, wherein, under abnormal operation conditions, the heat sensitive element releases the shutter, and the shutter moves along a straight line and closes the path between the varistor and the second external contact. 112-. (canceled)13. A varistor component comprising:a first external contact;a second external contact;a varistor electrically connected to the first external contact;a path between the varistor and the second external contact; andan active releasing device having a shutter and a heat sensitive element,wherein, under abnormal operation conditions, the heat sensitive element releases the shutter, and the shutter moves along a straight line and closes the path between the varistor and the second external contact.14. The varistor component of claim 13 , wherein the heat sensitive element is arranged in the path and establishes an electrical connection between the varistor and the second external contact.15. The varistor component of claim 13 , where the heat sensitive element is a fuse and has a conducting material with a melting point.16. The varistor component of claim 13 , further comprising an element exerting a force onto the shutter claim 13 , the element being select from a spring claim 13 , a thermos-expansion material and a memory metal.17. The varistor component of claim 13 , further comprising a linear guide rail claim 13 , wherein the shutter is arranged in the guide rail.18. The varistor component of claim 17 , wherein the shutter is a slider claim 17 , wherein the heat sensitive element is a metallic body extending through the guide rail and through the shutter and ...

ARRANGEMENT FOR OVERLOAD PROTECTION FOR OVERVOLTAGE PROTECTION EQUIPMENT

The invention relates to an arrangement for overload protection of overvoltage protection devices, consisting of at least one type II surge arrester with or without a thermal disconnecting device that responds in the event of an of overload. According to the invention, a switching unit free of movable contacts is connected in series with the at least one surge arrester and structurally combined therewith, which switching unit has at least two fixed narrow spaced switching contacts, wherein the spacing of the switching contacts is specified in such a way that in the event of every surge current or discharge process, the switching device changes into a quasi-closed state because of the arc formed; whereas in the idle state, the voltage of the connected mains drops at the switching device, with the surge arrester arranged in series remaining free of leakage current. 123. Arrangement for overload protection of overvoltage protection devices , consisting of at least one surge arrester () , in particular of type II with or without thermal disconnecting device () which responds in the event of an overload ,characterized in that{'b': 2', '6', '7', '8', '7', '8', '6', '6', '2, 'the at least one surge arrester (), which is structurally connected thereto, is connected in series with a switching unit () which is free of movable contacts and which comprises at least two fixed narrow spaced switching contacts (; ), the spacing of the respective switching contacts (; ) being specified in such a way that in the event of every surge current or discharge process, the switching unit () changes into a quasi-closed state as a result of the arc formed; whereas in the idle state, the voltage of the connected mains drops at the switching unit (), with the surge arrester () arranged in series remaining free of leakage current.'}2. Arrangement according to claim 1 ,characterized in that{'b': 7', '8, 'the fixed switching contacts (; ) are designed in such a way that the arc generated in the ...

PROTECTION ENSEMBLE

The invention relates to a protection ensemble, comprising 1. A protection ensemble , comprisinga circuit breaker, anda surge protector device,wherein the circuit breaker and the surge protector device have an interface,wherein the surge protector device comprises a monitoring device, and upon recognizing a fault condition by the monitoring device the circuit breaker can be tripped by means of the interface.2. The protection ensemble according to claim 1 , wherein the circuit breaker is arranged in an independent housing.3. Protection ensemble according to claim 1 , wherein the circuit breaker comprises fastening devices for a mounting rail.4. Protection ensemble according to claim 1 , wherein the circuit breaker can only be reactivated after recognizing a replacement of the surge protector device.5. The protection ensemble claim 1 , comprising a power supply claim 1 ,a thermal fuse,a surge protector device,wherein the power supply and the surge protector device have an interface,wherein the surge protector device comprises a monitoring device, and upon recognizing a fault condition by the monitoring device the power supply can produce a brief current surge by means of the interface so that the fuse is disconnected.6. The protection ensemble claim 1 , comprisinga power supply,a surge protector device,wherein the power supply and the surge protector device have an interface,wherein the surge protector device comprises a monitoring device, and upon recognizing a fault condition by the monitoring device the power supply can be disconnected by means of the interface.7. The protection ensemble according to claim 5 , wherein the power supply is arranged in an independent housing.8. The protection ensemble according to claim 4 , wherein the power supply comprises fastening devices for a mounting rail.9. The protection ensemble according to claim 1 , wherein the monitoring device comprises a thermal monitoring device and/or a fault arc monitoring device.10. The protection ...

INTEGRATED DEVICE HAVING GDT AND MOV FUNCTIONALITIES

Integrated device having GDT and MOV functionalities. In some embodiments, an electrical device can include a first layer and a second layer joined with an interface, with each having an outer surface and an inner surface, such that the inner surfaces of the first and second layers define a sealed chamber therebetween. The electrical device can further include an outer electrode implemented on the outer surface of each of the first and second layers, and an inner electrode implemented on the inner surface of each of the first and second layers. The first layer can include a metal oxide material such that the first outer electrode, the first layer, and the first inner electrode provide a metal oxide varistor (MOV) functionality, and the first inner electrode, the second inner electrode, and the sealed chamber provide a gas discharge tube (GDT) functionality. 1. An electrical device comprising:a first layer and a second layer joined with an interface that includes a glass seal, each layer having an outer surface and an inner surface, such that the inner surfaces of the first and second layers and the interface define a sealed chamber enclosing a gas therein;an outer electrode implemented on the outer surface of each of the first and second layers;an inner electrode implemented on the inner surface of each of the first and second layers; andwherein the first layer includes a metal oxide material such that the first outer electrode, the first layer and the first inner electrode form a first metal oxide varistor (MOV), and the first inner electrode, the second inner electrode and the sealed chamber with the gas form a gas discharge tube (GDT).2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. The electrical device of claim 1 , wherein the second layer includes a metal oxide material such that the second inner electrode claim 1 , the second layer and the second outer electrode form a second MOV claim 1 , such that the electrical device ...

Push On Arrester

An arrester is disclosed capable of coupling a cable accessory utilizing a push on method. The arrester comprises a body having a surge arrester portion, a receiving portion, and a conductive contact. The receiving portion is configured to couple to a coupling fastener comprising a first side, second side, and a latching mechanism. Various methods of engaging and disengaging the arrester to a cable accessory utilizing the coupling fastener are disclosed. 1. An arrester , comprising: a surge arrester portion,', 'a receiving portion, and', 'a conductive contact;, 'a body comprising,'} a first side,', 'a second side, and', 'a latching mechanism;, 'a coupling fastener comprising,'}wherein the first side of the coupling fastener is configured to couple to the conductive contact; andwherein the second side of the coupling fastener is configured to couple to a cable accessory.2. The arrester of claim 1 , wherein the latching mechanism comprises a snap ring and wherein the conductive contact comprises a detent.3. The arrester of claim 1 , wherein the latching mechanism comprises a detent and wherein the conductive contact comprises a snap ring.4. The arrester of claim 1 , wherein the latching mechanism comprises a plurality of segmented fingers and wherein each segmented finger includes a step.5. The arrester of claim 1 , wherein the receiving portion of the body comprises a coupling fastener second section claim 1 ,wherein the latching mechanism comprises a detent, andwherein the latching mechanism is configured to interference fits with the coupling fastener second section.6. The arrester of claim 5 , wherein the coupling fastener second section comprises a molded ring.7. The arrester of claim 1 , wherein the surge arrester portion comprises a metal oxide varistor (MOV) arrester block stack.8. The arrester of claim 1 , wherein the cable accessory comprises a 600 A male feature.9. An arrester claim 1 , comprising: a surge arrester portion,', 'a receiving portion, and', 'a ...

Surface-Mountable Semiconductor Component and Method for Producing Same

A surface-mountable semiconductor component and a method for producing the same are disclosed. In an embodiment the component includes an optoelectronic semiconductor chip, first and second contact elements and a molded body, wherein the chip includes a semiconductor body having a semiconductor layer sequence with an active region provided for producing and/or receiving electromagnetic radiation and arranged between a first semiconductor layer and a second semiconductor layer, wherein the first contact elements are electrically conductively connected to the first semiconductor layer and the second contact elements are electrically conductively connected to the second semiconductor layer, wherein the molded body at least partially encloses the optoelectronic semiconductor chip, wherein the semiconductor component includes a mounting face formed by a surface of the molded body, and wherein the first and second contact elements protrudes through the molded body in a region of the mounting face.

DEADFRONT ARRESTER WITH DISCONNECTOR DEVICE

Systems for disconnecting a surge arrester. One embodiment provides a surge arrester comprising a housing, a connecting interface configured to connect to an electrical power grid, and a disconnector device coupled to the connecting interface. A metal oxide varistor stack is coupled to the disconnector device, and a ground side connection is coupled to the metal oxide varistor stack, the ground side connection configured to connect to a system ground. The disconnector device is configured to disconnect the connecting interface from the system ground based on a predetermined disconnection condition. 1. A surge arrester comprising:a housing;a connecting interface configured to connect to an electrical power grid;a metal oxide varistor stack configured to connect to a system ground; anda disconnector device coupled between the connecting interface and the metal oxide varistor stack;wherein the disconnector device is configured to disconnect the connecting interface from the system ground based on a predetermined disconnection condition.2. The surge arrester of claim 1 , wherein a complete electrical connection is formed from the connecting interface to the system ground.3. The surge arrester of claim 1 , wherein the housing is composed of an insulating material.4. The surge arrester of claim 1 , wherein a resistance of the metal oxide varistor stack varies based on a voltage of the connecting interface.5. The surge arrester of claim 4 , wherein the resistance of the metal oxide varistor stack decreases as the voltage of the connecting interface increases.6. The surge arrester of claim 1 , wherein the predetermined disconnection condition is a predetermined current threshold claim 1 , and wherein the disconnector device disconnects the connecting interface from the system ground upon a current flowing through the surge arrester reaching the predetermined current threshold.7. The surge arrester of claim 1 , wherein the disconnector device disconnects the connecting ...

MULTILAYER CAPACITOR

A multilayer capacitor includes: a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively. The dielectric layer contains BaTiOas a main ingredient, and includes a plurality of grains and grain boundaries formed between adjacent grains, the grain boundary containing Si in an amount of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %. 1. A multilayer capacitor comprising:a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; andfirst and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively,{'sub': '3', 'wherein the dielectric layer contains BaTiOas a main ingredient, and includes a plurality of grains and grain boundaries formed between adjacent grains, and'}the grain boundary contains Si in a content of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %, based on a total content of oxides in the grain boundary.2. The multilayer capacitor of claim 1 , wherein a content of Mg is 0.2 to 1.1 wt % claim 1 , and a content of Al is 1.5 to 5.0 wt % claim 1 , based on the total content of oxides in the grain boundary.3. The multilayer capacitor of claim 1 , wherein the grain boundary further contains Ba in an amount of 40 to 65 wt % and Ti in an amount of 17 to 40 wt % claim 1 , based on the total content of oxides in the grain boundary.4. The multilayer capacitor of claim 1 , wherein the grain boundary further contains Ba and Ti claim 1 , and a ratio of a content of Ba to a content of Ti measured in terms of wt % is 2.00 or more.5. The multilayer capacitor of claim 1 , wherein the grain boundary further contains at least one selected from V ...

SURGE PROTECTION DEVICE WITH CONNECTION ELEMENTS AND METHOD FOR PRODUCING SAME

The invention relates to a surge protection device with connection elements, an overvoltage protection device (ÜSE), two contact elements (K, K), a slide (AS), a connection plate (B) and a force accumulator (F). The two contact elements (K, K) and the overvoltage protection device (ÜSE) are encased with an electrically nonconducting material on the surface. The electrically nonconducting material leaves open a connection area (A) formed on the second contact element (K). In a first state, the connection plate (B) is connected to the connection area (A). The slide (AS) is arranged such that it can slide on a surface of the electrically nonconducting material under the action of the force when the thermally softenable contact means softens in a second state, wherein the slide (AS) is displaced between the connection plate (B) and the connection area (A). The electrically nonconducting material is assigned a further function. 11. A surge protection device with connection elements , wherein the surge protection device comprises an overvoltage protection device , wherein the surge protection device further comprises two contact elements , wherein the contact elements electrically contact the overvoltage protection device , wherein the first contact element is formed such that it at the same time also forms a first connection element (S) , wherein the two contact elements and the overvoltage protection device are encased with an electrically nonconducting material on the surface , wherein the electrically nonconducting material leaves open a connection area formed on the second contact element , wherein the surge protection device furthermore comprises a connection plate , wherein the connection plate is formed such that it at the same time also forms a second connection element , wherein the connection plate in a first nontriggered state is connected to the connection area in an electrically conducting manner by a thermally softenable contact means , wherein the surge ...

OVERVOLTAGE PROTECTION WITH INDICATION OF EXCEEDED OPERATING TEMPERATURE

An overvoltage protection with indication of exceeded operating temperature, where the overvoltage protection includes at least one protection element from the group of a two-pole protection component, a two-pole protection component complemented with a temperature dependent fuse, and/or a three-pole protection component. All protection components used in the given overvoltage protection is linked via a thermal link to the status indicator including a thermosensitive layer with irreversible change of color in case a temperature of the destructed protection members of the overvoltage protection is exceeded 1. An overvoltage protection with indication of exceeded operating temperature , where the overvoltage protection comprises at least one protection element from the group of a two-pole protection component , a two-pole protection component complemented with a temperature dependent fuse , a three-pole protection component comprising all protection components used in the given overvoltage protection is linked via a thermal link to a status indicator consisting of a thermosensitive layer with irreversible change of colour in case a temperature of the destructed protection members of the overvoltage protection is exceeded.2. The overvoltage protection according to claim 1 , wherein all protection components are linked via the thermal link to one common status indicator.3. The overvoltage protection according to claim 1 , wherein each protection component is linked via the thermal link to its own status indicator.4. The overvoltage protection according to claim 2 , wherein the thermosensitive layer of the status indicator consisting of a paint coated directly onto protection components of the overvoltage protection.5. The overvoltage protection according to claim 2 , wherein the thermosensitive layer of the status indicator consists of the paint coated onto the thermos-conductive substrate located in a close distance from the protection members of the overvoltage ...

SENSOR TO MONITOR HEALTH OF METAL OXIDE ARRESTERS

A sensor to monitor health of surge arresters such as metal oxide arresters is disclosed. The sensor includes a housing; a sensor assembly contained in the housing, the sensor assembly including an electronics board to receive, transmit, process, and store signals; and a voltage measurement strap extending around a periphery of the housing, the voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field. 1. A surge arrestor sensor configured to monitor a health of a surge arrester , comprising:(a) a housing;(b) a sensor assembly contained in the housing, the sensor assembly including an electronics board to receive, transmit, process, and store signals; and(c) a voltage measurement strap extending around a periphery of the housing, the voltage measurement strap being electrically connected to the electronics board and configured to measure voltage using electric field.2. The surge arrester sensor according to claim 1 , further including a central shaft extending through a center of the housing between a first arrester side of the housing and a second non-arrester side of the housing claim 1 , the central shaft being grounded only to the second non-arrester side of the housing to reduce the capacitive current measured from the surge arrestor sensor to ground.3. The surge arrester sensor according to claim 2 , wherein a current transformer is positioned around the central shaft claim 2 , the current transformer being electrically connected to the electronics board to measure leakage current.4. The surge arrester sensor according to claim 1 , wherein the surge arrester sensor is attached to an energized end of the surge arrester.5. The surge arrester sensor according to claim 1 , further including:(a) a power source electrically connected to the electronics board to provide electrical current to the electronics board; and(b) an RF antenna electrically connected to the electronics board to ...

FAIL OPEN OR FAIL SHORT SURGE PROTECTOR

A surge protector includes a first and second contact connected via an energy absorbing element, such that electrical current travels from the first contact to the second contact via the energy absorbing element. The surge protector further includes a thermal spacing unit contacting the energy absorbing element and configured to be in a first physical state or a second physical state based on a temperature of the energy absorbing element. The surge protector further includes a connection unit connected to the second contact, the connection unit configured to be in a first position when the thermal spacing unit is in a first physical state and a second position when the thermal spacing unit is in a second physical state, such that the electrical current from the first contact to the second contact via the energy absorbing element is interrupted when the connection unit is in the second position. 1. A surge protector comprising:a first contact being electrically conductive and having a cavity defined by one or more walls and a bottom surface;a second contact being electrically conductive and having a contact surface;an energy absorbing element configured to absorb energy and release absorbed energy as heat, the energy absorbing element having a first contact surface and a second contact surface, the energy absorbing element located within the cavity, the first contact surface of the energy absorbing element contacting the bottom surface of the cavity and the second contact surface of the energy absorbing element contacting the contact surface of the second contact, such that electrical current travels from the first contact to the second contact via the energy absorbing element;a thermal spacing unit contacting the energy absorbing element, the thermal spacing unit configured to be in a first physical state or a second physical state based on a temperature of the energy absorbing element; anda connection unit connected to the second contact, the connection unit ...

VOLTAGE DEPENDENT RESISTOR

A voltage dependent resistor includes a ceramic body and an electrically conductive structure for external connection. The ceramic body has two opposite surfaces and a side surface connecting the two opposite surfaces, and at least one of the two opposite surfaces is formed with at least one protrusion at a position adjacent to the side surface. As the protrusion makes the opposite surfaces of the ceramic body non-planar, the voltage dependent resistor is capable of suppressing the occurrence of flashover firelight during surge impact, so that its capability of withstanding surge impact is enhanced and its lifespan is prolonged. In addition, such structural arrangement is capable of preventing ceramic plates from adhering with each other when they are stacked with each other during the sintering stage of a green compact, thereby simplifying the post-processing procedures and minimizing the defect rate. 1. A voltage dependent resistor comprising:a ceramic body comprising two opposite surfaces and a side surface connecting the two opposite surfaces, wherein at least one of the two opposite surfaces is formed with at least one protrusion at a position adjacent to the side surface; andan electrically conductive structure electrically connected to the ceramic body and adapted for external connection.2. The voltage dependent resistor according to claim 1 , wherein at least one of the opposite surfaces of the ceramic body is formed with a protrusion configured in an annular closed loop extending along the side surface.3. The voltage dependent resistor according to claim 1 , wherein at least one of the opposite surfaces of the ceramic body is formed with three protrusions.4. The voltage dependent resistor according to claim 3 , wherein the three protrusions are circumferentially and symmetrically distributed on the at least one of the opposite surfaces of the ceramic body and spaced out 120 degrees apart claim 3 , when the ceramic body is viewed from top.5. The voltage ...

Contact element for varistor

The invention relates to a contact for a varistor (VAR), comprising a first feed element (ZL1) which is suitable for connecting to a supply network, and a plurality of electrical connection points (V1, V2 . . . VN) which are at a distance from one another and are suitable for making multiple connections to a pole of said varistor (VAR). The plurality of electrical connection points (V1, V2, . . . VN) and the first feed element (ZL1) are electrically interconnected, and the plurality of electrical connection points (V1, V2, . . . VN) are each designed with fuse elements (F1, F2, . . . FN) such that local shorting of one part of the varistor (VAR) can be achieved by disconnecting the local electrical connection point (n) (V1, V2, . . . VN) in question.

MULTI-CONTACT ELEMENT FOR A VARISTOR

The object of the invention is a multi-contact element for a varistor wherein the multi-contact element has a sandwich structure, wherein the sandwich structure has two or more contact elements in a lowermost layer, and wherein the sandwich structure has at least one common connection electrode in an uppermost layer, wherein a first intermediate layer made of an electrically insulating layer of material is provided at least in segments between the lowermost layer (US) and the uppermost layer, wherein fuses are located in the first intermediate layer that are configured such that they are capable of sustaining a specified surge current, the specified surge current per fuse being less than the specified surge current of the varistor, wherein the fuses are embodied as vias within the first intermediate layer, wherein the fuses in the first intermediate layer are in direct electrical contact with the common connection electrode, wherein each of the fuses is in direct or indirect electrical contact with a subset of the contact elements (KE KE), wherein the fuses provide blow-out channels in the first intermediate layer so that in the event of a thermal overloading of a fuse of the first intermediate layer, the affected fuse can vaporize through the blow-out channel. 1. A multi-contact element for a varistor ,wherein the multi-contact element has a sandwich structure,wherein the sandwich structure has two or more contact elements in a lowermost layer, and wherein the sandwich structure has at least one common connection electrode in an uppermost layer,wherein a first intermediate layer made of an electrically insulating layer of material is provided between the lowermost layer and the uppermost layer at least in segments,wherein fuses are located in the first intermediate layer that are configured such that they can sustain a specified surge current, the specified surge current per fuse being less than the specified surge current of the varistor,wherein the fuses are ...