一起110千伏油浸式电流互感器电容量异常问题的原因分析  

Cause Analysis of Abnormal Capacitance of 110kV Oil Immersed Current Transformer

作　　者：石惠承 汪泽州 孙鹏 陈湘如 沈伟 SHI Hui-cheng;WANG Ze-zhou;SUN Peng;CHEN Xiang-ru;SHEN Wei(State Grid Jiaxing Power Supply Company,Jiaxing 314000,China;State Grid Haiyan Power Supply Company,Jiaxing 314000,China;Baoding Jinkehui Electronics Co.Ltd.,Baoding 071000,China;Jiaxing Hengguang Electric Power Construction Co.Ltd.,Engineering Service Branch,Jiaxing 314000,China)

机构地区：[1]国网嘉兴供电公司,浙江嘉兴314000 [2]国网海盐县供电公司,浙江嘉兴314000 [3]保定市金科汇电子有限公司,河北保定071000 [4]嘉兴市恒光电力建设有限责任公司工程服务分公司,浙江嘉兴314000

出　　处：《电气开关》2023年第5期107-109,113,共4页Electric Switchgear

摘　　要：针对一起油浸式电流互感器电容量增大的案例,通过显著性差异分析识别了故障,经试验、解体分析查明了异常原因为末屏引出至二次接线盒的压接点存在松动缺陷。该案例的分析对电容式电流互感器电容量异常的分析和处置具有一定借鉴意义。In view of a case fo increasing capacitance of oil immersed current transformer,that fault is identified significant difference analysis.Through test and disassembly analysis,it is found that the abnormal reason is that the crimping contact from the end screen to the secondary junction box is loose.The analysis of this case has certain reference significance for the analysis and disposal of abnormal capacitance of capacitive current transformer.

关 键 词：电流互感器 末屏 电容量 显著性差异 

分 类 号：TM452[电气工程—电器]