一起断路器分闸时间不稳定故障的分析与处理  

An Analysis and Treatment of a Circuit Breaker's Unstable Opening Time Fault

作　　者：杨政 钟宏乐 陈光 郭铭桂 YANG Zheng;ZHONG Hong-le;CHEN Guang;GUO Ming-gui(EHV Power Transmission Company Nanning Bureau of China Southern Power Grid Co.,Ltd,Nanning 530021,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司南宁局,广西南宁530021

出　　处：《电工电气》2022年第5期41-44,65,共5页Electrotechnics Electric

摘　　要：介绍了试验现场一起断路器分闸时间不稳定的故障分析与处理事件,通过记录断路器分合闸过程形成的线圈电流曲线,提取相关特征量展开分析,并综合其他方法验证,成功锁定故障位置并消除缺陷。本次故障的分析与处理,验证了基于电流曲线诊断断路器故障方法的可行性和有效性,对同类故障的排查和处理具有借鉴意义。This paper introduced analysis and treatment of an accident that happened at the test site,which is the unstable opening time fault of the circuit breaker.According to the record,the coil current curve could be formed during the opening and closing of the circuit breaker.This paper recorded and extracted the relevant feature quantities for analysis and verified with other methods.By doing this,this re-search could locate fault locations and eliminate defects.The analysis and processing of this fault verify the feasibility and effectiveness of the method for diagnosing circuit breaker faults based on the current curve and has significant meaning for the troubleshooting and processing of similar problems.

关 键 词：线圈电流曲线 分闸时间 电磁铁 断路器 

分 类 号：TM561[电气工程—电器]