Failure Analysis of 220 kV Current Transformer Caused by Improper Dehydrogenation Maintenance

QIN Jiayuan; LIU Yun

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Failure Analysis of 220 kV Current Transformer Caused by Improper Dehydrogenation Maintenance

更新时间：2025-11-18

- Failure Analysis of 220 kV Current Transformer Caused by Improper Dehydrogenation Maintenance
- Vol. 39, Issue 4, Pages: 57-60(2019)
- 作者机构：
  
  国网湖南省电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM452
- Published：2019
- 稿件说明：
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[1]秦家远,刘赟.脱氢检修不当导致220 kV电流互感器故障分析[J].湖南电力,2019,39(04):57-60.

QIN Jiayuan, LIU Yun. Failure Analysis of 220 kV Current Transformer Caused by Improper Dehydrogenation Maintenance[J]. 2019, 39(4): 57-60.
[1]秦家远,刘赟.脱氢检修不当导致220 kV电流互感器故障分析[J].湖南电力,2019,39(04):57-60. DOI：

QIN Jiayuan, LIU Yun. Failure Analysis of 220 kV Current Transformer Caused by Improper Dehydrogenation Maintenance[J]. 2019, 39(4): 57-60. DOI：

摘要

针对运行中220 kV油浸倒置式电流互感器爆炸损坏

开展现场故障调查与试验研究分析;通过对互感器内部固体绝缘材料油化研究分析

指出该类互感器单氢超标的主要原因;通过模拟互感器现场脱氢检修处理研究分析

提出该类互感器现场脱氢检修处理不可取;综合分析故障原因

提出后续处理建议。

Abstract

In view of the explosion damage of 220 kV oil-immersed inverted current transformer in operation

field fault investigation and test analysis are carried out. Based on the analysis of the oiling of solid insulation material inside the transformer by the manufacturer

the main reasons for the excessive single hydrogen in the transformer are pointed out. Through the study and analysis of the on-site dehydrogenation maintenance treatment of the simulated transformer by the manufacturer

it is pointed out that the on-site dehydrogenation maintenance treatment of such kind of transformer is not advisable. Comprehensive analysis of the failure causes and suggestions for follow-up treatment are put forward.

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Related Institution

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

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湖南省电力公司超高压管理局湖南长沙410015

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