Triggering characteristic of TVS and its application research in synthetic making test for high voltage circuit-breakers

Abstract

Triggered vacuum switches (TVS), have found fast growing applications in the field of power system and pulse power. The key to perform synthetic making test at full rated voltage for high voltage switches is the making device of current source, so the chief aim of this research is to investigate the triggering feature of TVS, a series experiments have been carried out on the sample TVS especially with AC load between the main electrodes. The triggering and delay characteristics were emphatically expounded. An elaborated circuit for controlling the TVS is proposed herein. The triggering energy of the controller can be adjusted conveniently. By means of changing the triggering energy, the experimental results show that the delay and jitter times decrease with increasing trigger energy. The delay and jitter times decreases magnificently with the increasing voltage in the main gap. By increasing the main-gap voltage, the triggered probability increases. At last, theoretically and experimental research has been carried out of TVS used for high voltage circuit breakers synthetic making test equipment. The analyzing and test results are presented also, and which indicate TVS was suitable for high voltage circuit breakers synthetic making test.