고속철도 차량 VCB투입에 따른 서지 전압 측정

초록

A ccording to frequent opening and closing operation of vacuum circuit breaker on electric railway vehicles, a surge voltage was generated, these surges voltage transients were propagated through the roof in high voltage cable, generated surge voltage. In this paper, we measured the surge voltage on the bushing terminal of main transformer at VCB closing operation and analyzed test results.