一起35kV环氧浇注电压互感器发热缺陷诊断与处理  

Diagnosis and Treatment of 35kV Epoxy-cast Voltage Transformer Heat Defect

作　　者：王俊娜 卢静文 仲桦 杨柳 WANG Jun-na;LU Jing-wen;ZHONG Hua;YANG Liu(EHV Company of State Grid Shanghai Electric Power Company,Shanghai 200063,China)

机构地区：[1]国网上海超高压公司,上海200063

出　　处：《变压器》2022年第11期73-75,共3页Transformer

摘　　要：本文介绍了某220kV变电站35kV环氧浇注电压互感器发热现象及原因分析,并针对此缺陷开展了绝缘电阻、变比、局部放电带电检测等一系列诊断性试验,对互感器运行状况做出评价,并提出相关运行维护措施。This paper introduces the heating phenomenon and cause analysis of 35kV epoxy-cast voltage transformer in a 220kV substation, and carries out a series of diagnostic tests, such as insulation resistance, voltage ratio and partial discharge detection,to evaluate the operating status of the transformer, and puts forward relevant operation and maintenance measures.

关 键 词：环氧浇注电压互感器 红外热像 绝缘电阻 局放带电 

分 类 号：TM406[电气工程—电器]