Analysis on TA abnormality of 220 kV cassette metal expander

SUN Wei; FANG Yi-ping; CHEN Bo; YIN Xu

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Analysis on TA abnormality of 220 kV cassette metal expander

更新时间：2025-11-18

- Analysis on TA abnormality of 220 kV cassette metal expander
- Vol. 33, Issue 3, Pages: 45-46+53(2013)
- 作者机构：
  
  湖南省电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM452
- Published：2013
- 稿件说明：
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[1]孙威,方毅平,陈波,尹旭.220kV盒式金属膨胀器引起TA异常分析[J].湖南电力,2013,33(03):45-46+53.

SUN Wei, FANG Yi-ping, CHEN Bo, et al. Analysis on TA abnormality of 220 kV cassette metal expander[J]. 2013, 33(3): 45-46+53.
[1]孙威,方毅平,陈波,尹旭.220kV盒式金属膨胀器引起TA异常分析[J].湖南电力,2013,33(03):45-46+53. DOI：

SUN Wei, FANG Yi-ping, CHEN Bo, et al. Analysis on TA abnormality of 220 kV cassette metal expander[J]. 2013, 33(3): 45-46+53. DOI：

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。

Abstract

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.

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Related Institution

湖南省电力试验研究所

Hunan Electric Power Construction Supervision & Consultancy CO.,LTD,Chansha

湖南省电力公司超高压管理局湖南长沙410015

EHV Administration of Hunan Electric Power Corporation

Hunan Xiangdian Test & Research Institute Co.,Ltd

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