500kV断路器因空气压力低告警导致断路器控制保护回路断线分析

Analysis of Break of 500kV Breaker Control and Protection Circuit Caused by Low Air Pressure

针对天生桥换流站500kV三菱断路器因空气压力低告警导致断路器控制保护回路断线这一情况,根据工作站中出现的信号,结合断路器的控制、保护二次回路,对信号及其出现的缘由进行分析,评估断路器控制保护回路断线时,可能出现的安全生产风险,发现目前存在的问题,并对这些问题提出解决方案。

Aiming at break of 500 kV Mitsubishi breaker control and protection circuit caused by low air pressure in Tianqiao Converter Station, according to the signal of the station, the reasons are analyzed combined with control circuit and secondary protect circuit of the breaker. The possible safety risks are evaluated when the control circuit breaks. The current problems are found and solutions are proposed.