旅客列车空调机组漏电保护断路器意外分断原因和解决措施

Causes to Unexpected Breaking of the Leakage Protection Circuit Breaker in Air-Conditioner Sets for Passenger Trains and Measures for Solution

针对DC 600V供电客车空调机组主电源加装漏电保护断路器后频繁出现意外分断现象,通过对漏电保护断路器原理和电源品质的综合分析、添乘试验和地面试验,查明了故障原因,并据此提出了针对运用客车和新造客车的解决措施。

In view of the unexpected breaking frequently happened in the DC 600 Vmain power supply for air-conditioner sets on passenger cars after equipping the leakage protection circuit breaker,through the comprehensive analysis of the principles of the leakage protection circuit breaker and the power supply quality,through testing on board and testing on the ground,the causes to the troubles are found out,and solution measures for operating passenger cars and newly manufactured passenger cars are given.