220kV变电站220kV线路间隔断路器异常分闸分析

Analysis of Abnormal Tripping of 220kV Line Breaker in 220kV Power Substation

介绍一起220kV变电站220kV线路间隔断路器异常分闸事件,分析断路器动作、保护原理,回路结构及三相不一致情况,并针对存在的缺陷进行应急处理,对设备管理中的不足提出建议。

The abnormal tripping event of 220kV line breaker in the 220kV substation was introduced. The breaker action, protection principle, circuit structure and three-phase inconsistency were analyzed. Emergency treatments for existing defects were carried out. Some suggestions on the deficiencies in equipment management were put forward.