小车开关一次导电部分隐蔽性发热隐患分析及对策  

Analysis and Countermeasures of Hidden Heat Dangers in the Primary Conductive Part of Removable Current Breaker

作　　者：魏金清 WEI Jinqing(Foshan Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Foshan 528500,China)

机构地区：[1]广东电网有限责任公司佛山供电局,广东佛山528500

出　　处：《电工技术》2021年第5期92-94,96,共4页Electric Engineering

摘　　要：近年来因小车开关一次导电部分接触不良而引起的开关柜发热问题时有发生,严重时将造成开关柜内部的短路故障。介绍了两起隐蔽性很强的小车开关一次导电部分接触不良缺陷的发现、分析及处理,为设备运维人员开展相关工作提供重要参考。In recent years,the switchgear heating problem caused by poor contact of the main conductive circuit of the removable current breaker frequently occurs.In severe cases,it causes a short-circuit fault inside the switchgear.The discovery,analysis and treatment of two hidden defects about the poor contact of the main conductive circuit of the removable current breakers are introduced,which can provide an important reference for equipment operation and maintenance personnel to carry out related work.

关 键 词：开关柜 小车开关 一次导电部分 接触不良 发热 

分 类 号：TM591[电气工程—电器]