摘要
SF6断路器是利用SF6气体作为灭弧和绝缘介质,在电网中对正常运行电流和故障电流进行有效开断的主要电气设备。SF6断路器若发生分合闸闭锁故障将不能及时切断电网故障电流,从而影响电力系统的安全稳定运行。本文结合具体案例对SF6断路器发生低气压闭锁的故障原因及处理方法进行具体分析。
SF6 circuit breaker is the main electrical equipment which uses SF6 gas as arc extinguishing and insulation medium to effectively interrupt normal operation current and fault current in power grid. SF6 circuit breaker can not cut off the fault current of power grid in time if it breaks off and closes, thus affecting the safe and stable operation of power system. In this paper, the causes and treatment methods of SF6 circuit breaker’s low-pressure blocking are analyzed with specific cases.
出处
《电力系统装备》
2018年第12期176-177,共2页
Electric Power System Equipment
关键词
断路器
绝缘介质
低气压
闭锁故障
circuit breaker
insulating medium
low air pressure
blocking fault
