朔黄线断路器过流保护误备投原因及解决方法

Causes of False Input of Circuit Breaker Over-current Protection Equipment and Its Solution in Su-Huang Railway

针对朔黄线肃宁北变电所10kV贯通线321断路器多次误备投导致与相邻变电所并网,引起非正常跳闸的原因进行了分析,找出了误备投的原因,并提出了解决方案,保证了铁路的正常供电。

In accordance with the false input for several times of 321 standby circuit breaker in 10 kV power through line in Xiaoningbei substation of Su-Huang railway that causes the interconnection with its adjacent substation, the paper analyzes the causes of abnormal tripping, finds out the reasons of false input and proposes solutions that are able to guarantee the normal power supply of railways.