±800kV特高压换流变异常产气故障分析及处理  

Analysis and Treatment of Abnormal Gas Production Fault in±800kV UHV Converter Transformer

作　　者：唐振 谷应科 曾祥君[1] 方毅平 唐星昱 TANG Zhen;GU Ying-ke;ZENG Xiang-jun;FANG Yi-ping;TANG Xing-yu(College of Electrical and Information Engineering,Changsha University of Science&Technology,Changsha 410114,China;Changsha Power Supply Branch,State Grid Hunan Electric Power Co.,Ltd.,Changsha 410000,China;Zhuhai Power Supply Bureau,Guangdong Power Grid Co.,Ltd.,Zhuhai 519000,China;Extra High Voltage Substation Company,State Grid Hunan Electric Power Co.,Ltd.,Changsha 410004,China)

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410114 [2]广东电网有限责任公司珠海供电局,湖南长沙410000 [3]国网湖南省电力有限公司长沙供电分公司,广东珠海519000 [4]国网湖南省电力有限公司超高压变电公司,湖南长沙410004

出　　处：《变压器》2023年第6期54-58,63,共6页Transformer

摘　　要：针对某±800kV特高压换流变自投运后本体油中溶解气体含量缓慢增长的故障,本文介绍了故障发生基本情况,分析了故障原因及换流变排油内检查找故障点情况,最后阐述了现场处理修复过程。文中阐述的故障分析方法和检查过程对于特高压换流变的检修运维工作具有借鉴意义。In view of the fault that the dissolved gas content in the bulk oil increases slowly after a±80OkV UHV converter transformer is put into operation,the basic situation of the occurrence is introduced in this paper,the fault cause and the internal inspection of converter transformer oil discharge to find the fault point are expounded.Finally,the on-site treatment and repair process are expounded.The analyzed method and inspected process mentioned in the paper is referential significant for operation and maintenance for converter transformer.

关 键 词：变压器 高压绕组 直流电阻 缺陷处理 

分 类 号：TM406[电气工程—电器]