断路器灵敏度与电缆长度关系的探讨

Relationship between the Sensitivity of Circuit Breaker and the Length of Cable

通过分析现有市政自来水厂、污水处理厂的设计与运维中,就低压电缆距离较长的情况、断路器无法有效保护末端故障问题的原因等讨论相应的解决对策。

The paper analyzes the reasons why the circuit breaker can not effectively protect the terminal fault when we design and maintenance of existing municipal waterworks or sewage treatment plants,due to the long distance of low-voltage cable,and discusses the corresponding solutions.