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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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Форма поиска

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 25. Отображено 25.
15-07-2015 дата публикации

Three-dimensional digitalized monitoring device for substation grounding grid and evaluation method

Номер: CN104777400A
Принадлежит:

The invention discloses a three-dimensional digitalized monitoring device for a substation grounding grid and an evaluation method. The three-dimensional digitalized monitoring device comprises a microcontroller, an adjustable direct-current constant current source, a current channel changeover switch module, a multi-channel wiring socket, a voltage channel changeover switch module, a signal processing module, a data storage module, a wireless communication module and an upper computer. The microcontroller is used for controlling output current, an analog voltage signal is output through a D/A (digital/analog) module and enters the adjustable direct-current constant current source, and the obtained voltage signal is used for storing data in a SD (secure digital) card through a file system by utilizing the current channel changeover switch module, the multi-channel wiring socket and the voltage channel changeover switch module; the acquired data is sent to the upper computer through a wireless ...

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27-06-2023 дата публикации

Vibration sensor field calibration characteristic simulation test method

Номер: CN116337214A
Принадлежит:

The invention discloses a vibration sensor field calibration characteristic simulation test method. A simulation test is carried out through a vibration sensor calibration characteristic simulation test platform. The vibration sensor verification characteristic simulation test platform comprises a verification device host, two standard sensors, a standard background plate and a simulation test platform. The standard background plate is in a plate shape, and the standard background plate is provided with an excitation source, two standard sensors, an oil pipe flange plate, a metal accessory and a reinforcing rib. The two standard sensors are respectively installed corresponding to the excitation sources; the verification device host is in signal connection with the two standard sensors and the excitation source. And when the two standard sensors have consistent verification characteristics, the standard sensors are arranged on the simulation test platform. The method is used for guiding ...

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08-04-2015 дата публикации

Practical multifunctional connection box for field wiring

Номер: CN104505680A
Принадлежит:

The invention discloses a practical multifunctional connection box for field wiring. The connection box comprises a box body, wherein three wiring terminals, namely a live wire connecting terminal, a zero wire connecting terminal and an earth wire connecting terminal are arranged on the front side of the box body; hidden grooves are formed on the left side or the right side of the box body; a three-pin plug and a two-pin plug are arranged in the hidden grooves; a slideway is arranged on the side surface of the side of the box body where the hidden grooves are located; and a sliding cover plate is slidingly connected in the slideway, and is located on the outer side of the hidden grooves. The connection box can realize power supply wiring and signal wiring more applicable to a complicated field test environment, can meet nearly all actual field working requirements, is simple, reliable, time-saving and labor-saving in wiring, and can greatly improve the working efficiency.

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30-10-2020 дата публикации

Liquid measuring device for measuring sectional area of pipeline or cable

Номер: CN0211824309U

The utility model relates to a liquid measuring device for measuring the sectional area of a pipeline or a cable, and the device comprises a container containing liquid, the side wall of the containeris provided with scale lines, the top of the container is provided with a fixed assembly, and the metal pipeline or the cable can be hung in the container through the fixed assembly in a manner of moving up and down. The beneficial effects of the utility model are that: the utility model discloses: the beneficial effect is: The utility model designs a liquid measuring device for measuring the sectional area of a pipeline or a cable. According to the measuring device, a traditional metal oil and gas pipeline or power transmission cable sectional area micrometer and a formula calculation measuring method are improved; the irregular sectional area of the metal oil-gas pipeline or the power transmission cable can be indirectly calculated in a liquid volume replacement mode, operation is easy,convenient ...

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14-04-2010 дата публикации

Converter station insulating co-operating design method of high-pressure direct-current power transmission system

Номер: CN0101694939A
Принадлежит:

A converter station insulating co-operating design method of a high-pressure direct-current power transmission system belongs to a high-pressure direct-current power transmission system analyzing method, and aims at simplifying calculating working capacity, avoiding excessive man-made interference, and guiding users to highly-effectively finish insulating co-operating analysis. The converter station insulating co-operating design method comprises the lightning arrester configuration step, the system analysis step and the insulating co-operating step. The converter station insulating co-operating design method greatly simplifies the calculating working capacity of insulating co-operating analysis, avoids excessive man-made interference factors of users, and guides users to highly-effectively finish insulating co-operating analysis through a guiding mode.

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26-03-2014 дата публикации

Transformer neutral point direct current suppression device

Номер: CN103683194A
Принадлежит:

The invention discloses a transformer neutral point direct current suppression device. The transformer neutral point direct current suppression device comprises a blocking capacitor connected between a neutral point of a transformer and the ground, a rapid closing switch in parallel connection with the blocking capacitor, a rectifier bridge and a triggering module. The input end of the rectifier bridge is connected with the two ends of the blocking capacitor and enables an alternating current voltage of the neutral point of the transformer to be converted into a direct current voltage, and the direct current voltage is output to the triggering module. The output end of the triggering module is connected with a trip coil of the rapid closing switch and used for detecting the value of a voltage output by the rectifier bridge in time, when an over-voltage is detected, the triggering module is triggered and switched on so as to enable the trip coil to be powered on, the normally open contact ...

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19-08-2015 дата публикации

Multifunctional tool kit with functions of portable power source and light source

Номер: CN104842331A
Принадлежит:

A multifunctional tool kit with functions of a portable power source and a light source comprises a tool kit body and a tool kit cover on the tool kit body. A handle is disposed on the tool kit cover. A foldable support arm is disposed in the tool kit body. The lower end of the foldable support art is connected with the inner side of the tool kit body. The upper end of the foldable support arm is connected with a solar panel. A power supply and a power supply output module connected with the power supply are disposed in the tool kit body. A low-voltage charging groove and tool slots for placing tools are formed in the tool kit body. A lamp strip is further disposed on the outer side of the tool kit body. A circuit switch is disposed on the circuit of the lamp strip. An LED tool handle is disposed in the tool kit body. The multifunctional tool kit has the advantages that the black tool kit design and layered arrangement are used, natural energy is utilized, the tool kit gets rid of the dependence ...

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05-05-2023 дата публикации

Calibration method and equipment for current type on-line monitoring device

Номер: CN116068480A
Принадлежит:

The invention relates to a current type on-line monitoring device verification method and equipment, and a current type on-line monitoring device comprises a first current sensor used for measuring the change rate of magnetic flux in a monitoring area, and the method comprises the steps: S1, setting a verification current sensor used for synchronously measuring the change rate of magnetic flux in the monitoring area, the verification current sensor is connected with a current magnitude output device; s2, superposing a counteracting magnetic field in the monitoring area, so as to enable the induction current of the first current sensor to be in an inspection gear; s3, synchronously acquiring a first current magnitude output by the current type online monitoring device and a second current magnitude output by the current magnitude output device; and S4, by taking the second current magnitude as a reference, verifying the current type online monitoring device. By using the device, the inspection ...

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15-07-2015 дата публикации

Three-dimensional digitalized monitoring device and method for substation grounding grid

Номер: CN104777399A
Принадлежит:

The invention discloses a three-dimensional digitalized monitoring device and method for a substation grounding grid. The three-dimensional digitalized monitoring device comprises a data acquisition system, a grounding grid state evaluation system, a three-dimensional imaging system, a digital information storage system, a state information output system and a fault alarm system, wherein the signal output end of the data acquisition system is connected with the signal acquisition end of the grounding grid state evaluation system; the first signal output end of the grounding grid state evaluation system is connected with the three-dimensional imaging system; the second signal output end of the grounding grid state evaluation system is connected with the digital information storage system; the third signal output end of the grounding grid state evaluation system performs displaying through the state information output system; the signal output end of the state information output system is ...

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23-06-2023 дата публикации

Method for erecting power transmission line on bridge

Номер: CN116316273A
Принадлежит:

The invention belongs to the technical field of power transmission line erection, and particularly relates to a method for erecting a power transmission line on a bridge, which comprises the following steps: S1, erecting a cross arm, and installing one end of the cross arm on the bridge; s2, insulator strings are installed at the two ends of the cross arm respectively, the bottoms of the insulator strings are clamped to the power transmission line, and the power transmission line is a direct-current line or an alternating-current line; s3, one end of the cross arm is installed on the bridge through a clamping assembly, and the clamping assembly is used for connecting the cross arm to the bridge and assisting installation or maintenance of the power transmission line. When lines are erected on a bridge, roads are not occupied, normal running of vehicles can be guaranteed, traffic pressure is avoided, the structure is simple, installation and maintenance are easy, the labor intensity of operators ...

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23-03-2017 дата публикации

Distributed Test Method Applicable to System-Level Test of Intelligent High Voltage Equipment

Номер: US20170082670A1
Принадлежит:

A distributed test method applicable to a system-level test of intelligent high voltage equipment. The method includes: firstly, carrying out unified modeling on test equipment behaviors according to test requirements, and generating a general test case for ensuring accuracy and coordination of test behaviors and test time sequences under various work conditions; then, extracting, according to a feature element of role defining, sequence states of same roles from the general test case, and recombining the sequence states according to an execution sequence so as to form test sub-cases of the roles; finally, executing, by each piece of test equipment, corresponding test sub-cases to achieve cooperative linkage by means of information interaction, so as to accomplish entire process simulation of the test conditions. 1. A distributed test method applicable to a system-level test of intelligent high voltage equipment , comprising:1) carrying out unified modeling on test equipment behaviors according to test requirements, and generating a general test case;2) for each of same roles in the general test case, extracting basic elements associated with sequence states of the same role, and recombining the basic elements according to an execution sequence so as to form a test sub-case of the role;3) upon starting of the test, executing, by each piece of test equipment, a respective test sub-case, and achieving cooperative linkage by means of information interaction, so as to automatically accomplish an overall process of test work conditions.2. The distributed test method applicable to the system-level test of the intelligent high voltage equipment of claim 1 , wherein the general test case in Step 1) globally carries out systematic description and normalized expression on behaviors and time sequences required by the system work conditions claim 1 , and wherein during each of different processes of the general test case claim 1 , a corresponding action subject is determined.3. ...

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30-06-2023 дата публикации

Three-way adapter for verifying ultrahigh-frequency partial discharge online monitoring device and use method of three-way adapter

Номер: CN116359820A
Принадлежит:

The invention provides a three-way adapter for verification of an ultrahigh frequency partial discharge online monitoring device and a use method, and belongs to the technical field of field verification of the ultrahigh frequency partial discharge online monitoring device. The three-way adapter comprises a first connector, a second connector and a third connector, the first connector is connected with an ultrahigh frequency partial discharge sensor, and the second connector is connected with a second connector; the second connector is connected with an online monitoring device background, the third connector is connected with a calibration standard signal source, and the second connector and the third connector are not connected at the same time. According to the invention, the design of the three-way adapter is utilized, and a signal channel specially used for verifying the ultrahigh-frequency partial discharge online monitoring device is reserved, so that the ultrahigh-frequency partial ...

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07-10-2015 дата публикации

High tension switchgear inlet air channel device

Номер: CN0204696522U
Принадлежит:

The utility model provides a high tension switchgear inlet air channel device, includes the cubical switchboard, and horizontal arrangement's tripe hole is seted up to the xiamen lower part before the cubical switchboard, is equipped with interconnect's the preceding body of the room cabinet down steel sheet and bus -bar room department cabinet body steel sheet that have a cell type hole in the cubical switchboard, and the preceding body of room cabinet down steel sheet is circuit breaker room and bus -bar room respectively by the both sides on top, circuit breaker room bottom is equipped with circuit breaker room bottom fan, and the top is equipped with circuit breaker room upper portion extractor fan, and the top of bus -bar room is equipped with bus -bar room upper portion extractor fan, its characterized in that: descend in the front room installation cubical switchboard inlet air channel device, cubical switchboard inlet air channel device includes inlet air channel installing support ...

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24-12-2019 дата публикации

Distributed test method applicable to system-level test of intelligent high voltage equipment

Номер: US0010514407B2

A distributed test method applicable to a system-level test of intelligent high voltage equipment. The method includes: firstly, carrying out unified modeling on test equipment behaviors according to test requirements, and generating a general test case for ensuring accuracy and coordination of test behaviors and test time sequences under various work conditions; then, extracting, according to a feature element of role defining, sequence states of same roles from the general test case, and recombining the sequence states according to an execution sequence so as to form test sub-cases of the roles; finally, executing, by each piece of test equipment, corresponding test sub-cases to achieve cooperative linkage by means of information interaction, so as to accomplish entire process simulation of the test conditions.

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09-04-2014 дата публикации

Method for monitoring operating state of power transformer on line under direct-current magnetic bias condition

Номер: CN103713217A
Принадлежит:

The invention discloses a method for monitoring the operating state of a power transformer on line under the direct-current magnetic bias condition. The method comprises the following steps that a vibration signal of the wall of a transformer tank, a three-phase voltage signal of the transformer, a three-phase current signal of the transformer and a neutral-point direct current are collected; based on the K-means cluster analysis method, a transformer vibration cluster model is built; the amplitude of the 100Hz component of the measured vibration signal of the wall of the transformer tank is compared with the output quantity of the transformer vibration cluster model, and if the relative error between the amplitude and the output quantity is smaller than a threshold value, it is determined that the operating state of the transformer is normal; if the relative error between the amplitude and the output quantity is greater than or equal to the threshold value, it is determined that the operating ...

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01-08-2023 дата публикации

Vibration sensor verification device and method

Номер: CN116519126A
Принадлежит:

The invention discloses a vibration sensor verification device and method, and belongs to the technical field of vibration sensor verification, the vibration sensor verification device comprises a verification device host, a verification comparison sensor and a standard background plate, a vibration excitation source of the verification device host is arranged at the central position of the standard background plate; the test comparison sensor and the calibrated vibration sensor are both arranged on the standard background plate, the distances from the test comparison sensor and the calibrated vibration sensor to the vibration excitation source are equal, and the test comparison sensor and the calibrated vibration sensor are both in signal connection with the acquisition end of the calibration device host; the standard background plate is provided with an annular installation groove, and the detection comparison sensor and the vibration sensor to be detected are both arranged in the annular ...

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28-07-2023 дата публикации

Unmanned aerial vehicle verification device and verification method for infrared online monitoring device

Номер: CN116495209A
Принадлежит:

The invention provides an unmanned aerial vehicle verification device and verification method for an infrared online monitoring device, and belongs to the technical field of field verification of infrared online monitoring devices. The unmanned aerial vehicle verification device comprises an unmanned aerial vehicle and a black body arranged on the unmanned aerial vehicle; the unmanned aerial vehicle comprises a body, propellers and undercarriages. The undercarriage comprises first connecting rods arranged on the two sides of the body, second connecting rods connected with the first connecting rods and supporting rods vertically and downwards arranged at the ends of the second connecting rods, motors are arranged above the ends of the second connecting rods, and the propellers are connected with output shafts of the motors; the black body is provided with a lens and is arranged below the body. The unmanned aerial vehicle is used as a carrier, the standard black body and the unmanned aerial ...

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08-04-2015 дата публикации

Novel full-sealed electromagnetic shielding impedance box

Номер: CN104502643A
Принадлежит:

The invention relates to a novel full-sealed electromagnetic shielding impedance box. The novel full-sealed electromagnetic shielding impedance box comprises a box body and a foundation, wherein the outer side of the foundation is respectively provided with a grounding end, a foundation outer side measurement end coaxial cable jack and a foundation outer side signal end coaxial cable jack in a circumference direction, the box body comprises an electric field shielding cover and a magnetic field shielding cover which are sleeved with an interval, the electric field shielding cover is arranged at the outer side of the magnetic field shielding cover, intervals are arranged between the top portion and circumference of the magnetic field shielding cover and the electric field shielding cover, and bottom portions of the electric field shielding cover and the magnetic field shielding cover are respectively provided with an opening. The method is more applicable to AC high voltage signal measurement ...

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29-06-2011 дата публикации

Converter station insulating co-operating design method of high-pressure direct-current power transmission system

Номер: CN0101694939B
Принадлежит:

A converter station insulating co-operating design method of a high-pressure direct-current power transmission system belongs to a high-pressure direct-current power transmission system analyzing method, and aims at simplifying calculating working capacity, avoiding excessive man-made interference, and guiding users to highly-effectively finish insulating co-operating analysis. The converter station insulating co-operating design method comprises the lightning arrester configuration step, the system analysis step and the insulating co-operating step. The converter station insulating co-operating design method greatly simplifies the calculating working capacity of insulating co-operating analysis, avoids excessive man-made interference factors of users, and guides users to highly-effectively finish insulating co-operating analysis through a guiding mode.

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17-12-2014 дата публикации

Fog-haze environment simulation experiment device

Номер: CN104215570A
Принадлежит:

The invention discloses a fog-haze environment simulation experiment device. The device comprises a closed fog-haze tank, a fog-haze production system, a parameter measuring system and a high-voltage discharge model system, wherein the fog-haze production system comprises a fog production system and a haze production system, the outputs of the fog production system and the haze production system are communicated with internal of the fog-haze tank; the parameter measuring system comprises a fog-haze concentration monitoring device, a fog-haze particle size distribution monitoring device and a temperature and humidity sensor; the high-voltage discharge model system comprises an aluminum bar, an aluminum plate and/or an insulator; a high-voltage sleeve with a built-in high-voltage wire is communicated with the internal of the fog-haze tank, the aluminum bar, and the aluminum plate and/or the insulator are arranged in the fog-haze tank. The simulation for the fog-haze test environment with ...

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22-08-2023 дата публикации

Processing method for optimizing surface direct current flashover and charge aggregation phenomenon of epoxy insulator

Номер: CN116622110A
Принадлежит:

The invention provides a processing method for optimizing surface direct current flashover and charge aggregation phenomena of an epoxy insulator, and belongs to the technical field of power system equipment insulation protection. The processing method for optimizing the direct-current flashover and charge aggregation phenomena on the surface of the epoxy insulator comprises an epoxy insulation sample wafer, and the epoxy insulation sample wafer is subjected to a fluorination processing flow to improve the direct-current flashover and charge aggregation phenomena on the surface of the epoxy insulation sample wafer. The epoxy insulating sample wafer is an aluminum oxide filled epoxy resin material for supporting the insulating gas switch equipment, and the fluoridation treatment process is that fluorine-containing mixed gas is used for carrying out fluoridation treatment reaction on the epoxy insulating sample wafer in a closed reaction kettle. The method is simple in technology, low in ...

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26-03-2014 дата публикации

Ultrasonic transducer device

Номер: CN103674134A
Принадлежит:

An ultrasonic transducer device comprises two crank arms, a crank spring and two ultrasonic transducers. A rotating shaft is arranged in the middle of the crank arms which are divided into left parts and right parts centering on the rotating shaft, and the crank spring is arranged between the right parts of the crank arms. The left ends of the crank arms are respectively connected with one ultrasonic transducer, and the ultrasonic transducers are arranged in an upper-lower position manner, namely an upper ultrasonic transducer and a lower ultrasonic transducer which are arranged symmetrically. The ultrasonic transducer device randomly adjusted in size according to the pipe diameter of an internal cooling water pipe can be in better contact with the water pipe and can be firmly fixed so as not to move with changes of external conditions and vibration of a tested pipeline, and the situations such as attenuation or missing of ultrasonic signal strength caused by slipping of the device happen ...

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04-04-2023 дата публикации

Monitoring system and monitoring method for abnormal discharge of GIL pipeline shell based on metasurface technology

Номер: CN115902538A
Принадлежит:

The invention discloses a GIL pipeline shell abnormal discharge monitoring system and method based on a super-structure surface technology, and the system comprises a GIL/GIS pipe shell super-structure surface sensor which is composed of super-structure piezoelectric array modules and is used for receiving a high-voltage electric signal transmitted to a pipe shell by GIL/GIS pipeline abnormal discharge; the leads are connected with the piezoelectric array modules and are used for connecting the piezoelectric array modules; the digital-to-analog conversion module is connected through a wire and is used for converting the physical analog quantity into a digital signal; the digital signal processing module is used for the upper computer and the storage medium for evaluating and diagnosing the abnormal discharge fault to store the electrical signal characteristic data of the abnormal discharge fault; and the upper computer is used for signal analysis and abnormal discharge fault evaluation ...

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12-02-2014 дата публикации

Novel butting type bird resisting cover for high-voltage transmission line

Номер: CN103579981A
Принадлежит:

The invention discloses a novel butting type bird resisting cover for a high-voltage transmission line. The novel butting type bird resisting cover comprises a cover body which is in a disc shape, a main reinforcing rib is arranged on the upper surface of the cover body, the cover body is divided into a left cover main body and a right cover main body, the left cover main body and the right cover main body are respectively in a semicircular shape, and the left cover main body and the right cover main body are connected at the position of the main reinforcing rib in a clamped mode through a bolt. The novel butting type bird resisting cover for the high-voltage transmission line prevents high-voltage line insulator breakdown caused by bird damage, improves the resistance of the insulator of the high-voltage transmission line, and ensures the safety operation of the line. The novel butting type bird resisting cover for the high-voltage transmission line is directly arranged above a line suspension ...

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16-09-2015 дата публикации

Realize multi -functional toolbox of portable power source and light source

Номер: CN0204640191U
Принадлежит:

The utility model provides a realize multi -functional toolbox of portable power source and light source, includes the case lid on box and the box, is equipped with the handle on the case lid, be equipped with folding support arm in the box, the lower extreme of folding support arm is connected with the box is inboard, and the upper end of folding the support arm is connected with solar cell panel, be equipped with in the box power and with the power output module of power connection, also be equipped with in the box low pressure the groove of charging, be used for placing the tool slotted hole of instrument, also be equipped with the lamp area on the lateral surface of box, be equipped with the circuit switch on the circuit in lamp area, being equipped with LED instrument handle in the box, adopting the design of black box style, laminate arrangement mode, utilize the nature energy, furthest breaks away from the reliance to site environment, energy -concerving and environment -protective ...

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