GIS外壳感应电流的影响及典型发热案例分析  

Analysis on the Influence of Induced Current on GIS Shell and Typical Heating Cases

作　　者：陈宁 姜鑫鑫 周声华 孙琛 CHEN Ning;JIANG Xinxin;ZHOU Shenghua;SUN Chen(State Grid Shanghai EHV Transmission and Transformation Company,SMEPC,Shanghai 200063,China)

机构地区：[1]国网上海市电力公司超高压公司,上海200063

出　　处：《电力与能源》2023年第2期127-128,134,共3页Power & Energy

摘　　要：气体绝缘全封闭组合电器(GIS)在运行时外壳中会出现感应电流,并可能造成设备发热的问题。讨论了感应电流产生的机理并分析了其可能造成的影响。对一起GIS设备外壳接地的典型发热案例进行了分析,提出了采用三相并接汇流后再接地的解决方案,并对设备验收以及运维人员后续维护工作给出了建议。Gas insulated switchgear(GIS)will induce current in the enclosure during operation,which may cause the problem of equipment heating.This paper discusses the mechanism of induced current generation and its influence,and analyzes a typical heating case of GIS equipment casing grounding.The solutions of grounding after three-phase parallel connection and the suggestions for the equipment acceptance and follow-up maintenance work of operation and maintenance personnel are proposed.

关 键 词：GIS 感应电流 发热问题 外壳接地 

分 类 号：TM564[电气工程—电器]