西门子3AP2FI型550kV瓷柱式断路器偷跳原因分析及处理建议

Cause Analysis and Treatment Suggestion of Smuggling of Siemens3AP2FI 550 kV Porcelain Column Circuit Breaker

本文介绍了在2019年出现的两起西门子3AP2FI型550 kV瓷柱式断路器的偷跳缺陷,分析了出现这种缺陷的原因,并根据断路器分合闸动作特性和断路器机构存在的问题提出了相应的消缺建议,以改进和完善该种断路器运维工作。

This paper introduces the stolen trip defect of Siemens 3AP2FI 550 kV ceramic column circuit breaker in 2019,analyses the reasons for this defect,and puts forward corresponding suggestions for eliminating the defect according to the characteristics of breaking and closing operation of circuit breaker and the existing problems of circuit breaker mechanism,so as to improve and perfect the operation and maintenance of this kind of circuit breaker.