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A new type controlled switching device is introduced, which based on vacuum circuit-breaker (VCB) and power electronic switch(IGBT) to form the combination switch module. The structure and working principle of provided combination switch were emphatically expounded, especially the open and closing process and controlling strategy were discussed in detail. The researched VCB with permanent magnet actuator,...
Triggered vacuum switches (TVS), have found fast growing applications in the field of power system and pulse power. A closing switch is the necessary controlling device of power supply of an ElectroMagnetic Launcher (EML) system and synthetic making test of high-voltage circuit breakers for short-circuit current introduce, which should have the ability to quick connect the circuit and precisely controlling...
Compared with high power laboratories abroad, high voltage test level in China is to be improved. In order to meet the development requirements of modern circuit breakers and to better simulate the network, testing capabilities have to be expanded. According to the existing equipment and testing conditions of main domestic test house, a new testing circuit for synthetic making test of high voltage...
The key to perform synthetic making test at full rated voltage for high voltage switches is the making device of current source, which should have the capability to withstand the static and transient voltage and also can conduct short-circuit current without excessive erosion, Moreover it ought to be hair-trigger and control accurately. A new kind of fast making device is emphatically expounded in...
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