550-MHMe-2Y型断路器气动机构漏气漏点的分析诊断及防范措施

550-MHMe-2Y type pneumatic actuator of circuit breaker leakage analysis and preventive measures

通过分析550-MHMe-2Y型断路器气动机构的分合闸过程,提出了"气路"分析思想,根据"气路"分析找出了导致550-MHMe-2Y型断路器频繁打压的薄弱环节,即常见的漏点;分析了气路薄弱环节漏气的4个主要原因,结合运行维护经验,介绍了2种漏点检测方法,并提出了相应的防漏措施.

In this paper,through the analysis of 550-MHMe-2Y type pneumatic actuator of circuit breaker on-off process,put forward the 'gas' thought,according to'gas' and analyzing the cause of type 550-MHMe-2Y circuit breaker of the weak links,namely common leakage,gas leakage analysis way weak links the four main reasons,combined operation maintenance experience,introduced two kinds of leak detection methods,and puts forward two effective leak-proof measures,practice has proved to be effective measures.