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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2. Отображено 2.
30-04-2014 дата публикации

GIS loop resistance assessment method based on supercapacitor

Номер: CN103760421A
Автор: LUO RONGBO, WANG YAN, MIAO YINYIN, LI GUOWEI, WANG JUNBO, ZHANG WEIZHONG, XIE ZHIYANG, LI LEI, CHEN SIXIANG
Принадлежит:

The invention discloses a GIS loop resistance assessment method based on a supercapacitor. The supercapacitor serves as a discharging current source, when the supercapacitor which is full of charges carries out discharging on loop resistance to be measured, the supercapacitor can generate a strong impulse current, the value of the loop resistance is usually smaller than 100 microhm, the change rate k of the loop resistance along with the current cannot be easily and directly obtained, therefore, before assessment is carried out on the contact state of a contact through the change rate k of the loop resistance along with the current, normalization processing is carried out on measured data according to the normalization formula in the specification, the data with different scales are unified to be at the unified scale, the change rate k of the loop resistance along with the current can be clearly and conveniently obtained, the contact state of the contact can be assessed through the change ...

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Номер записи: 1
24-12-2014 дата публикации

Device for testing power frequency follow current intercepting capability of lightning protection device

Номер: CN104237751A
Автор: LI HENGZHEN, LIU GENCAI, LIU YIJUN, OU FAN, KONG HUADONG, FAN QUNFANG, DONG DI, REN YAYING, CHEN BANGFA, MIAO YINYIN
Принадлежит:

The invention discloses a device for testing the power frequency follow current intercepting capability of a lightning protection device. The device comprises a power frequency oscillation circuit, a high-voltage impact circuit, a mechanical linkage device, a sampling resistor and a voltage distributing device. The power frequency oscillation circuit comprises a power frequency inductor, a first sphere gap and a power frequency capacitor, wherein the power frequency inductor, the first sphere gap and the power frequency capacitor are sequentially connected. The high-voltage impact circuit comprises a waveform adjustor, a second sphere gap and an impact capacitor, wherein the waveform adjustor, the second sphere gap and the impact capacitor are sequentially connected. The power frequency inductor, the high-voltage impact circuit and the voltage distributing device of the power frequency oscillation circuit are connected with two connecting-in ends respectively in parallel, and one connecting-in ...

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Номер записи: 2