220kV盒式金属膨胀器引起TA异常分析  

Analysis on TA abnormality of 220 kV cassette metal expander

作　　者：孙威[1] 方毅平[1] 陈波[1] 尹旭[1] 

机构地区：[1]湖南省电力公司检修公司,湖南长沙410004

出　　处：《湖南电力》2013年第3期45-46,53,共3页Hunan Electric Power

摘　　要：结合220 kV云桂Ⅰ线606 C相电流互感器相关缺陷和隐患,介绍各种金属膨胀器的用途和结构,分析和探讨此类TA出现缺陷和异常现象的原因,并针对盒式金属膨胀器存在的缺陷提出检修和改造建议。According to the defects and hidden danger of the current transformer of 606 phase C in 220 kV Yungui I line, the use and structure for various kinds of metal expander is introduced. The reasons of defect and abnormal phenomenon appeared in CT are analysed and discussed, and the maintenance and modification suggestions are put forward aiming at the limitation of cassette metal expander.

关 键 词：电流互感器 金属膨胀器 盒式 波纹式 原因分析 

分 类 号：TM452[电气工程—电器]