剩余电流动作断路器的分级保护及延时型剩余电流动作断路器

By-stage protection of residual current operated circuit breaker and time delay residual current operated circuit breaker

简述剩余电流动作断路器应用于低压配电系统中,对因防止配电线路及用电设备因绝缘损坏发生对地短路而导致的事故问题,以多层住宅的配电线路为例作了具体的分析,介绍了剩余电流动作断路器的使用和匹配(电流、时间)等方面的保护特性。

The paper briefly describes residual current operated circuit breaker wor distributing systems, concretely analyses earth leakage faults caused by insulation damage g in low voltage in a distributing circuit or a consumer appliance and their preventions, taking a distributing circuit in multiple-storied build- ings： finally, the author introduces application and coordination （current, time） of residual current operated circuit breaker and its protective characteristics.