Failure Analysis on Bushing Affected by Damp for 110kV Main Transformer

Li Lin; Liao Wenlong; Deng Yong

doi:10.16527/j.issn.1003-6954.20210518

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Failure Analysis on Bushing Affected by Damp for 110kV Main Transformer

更新时间：2026-02-13

- Failure Analysis on Bushing Affected by Damp for 110kV Main Transformer
- Issue 5, Pages: 91-94(2021)
- 作者机构：
  
  1. 国网四川省电力公司德阳供电公司
  2. 国网四川省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.16527/j.issn.1003-6954.20210518
  CLC： TM41
- Published：2021
- 稿件说明：
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Li Lin, Liao Wenlong, Deng Yong. Failure Analysis on Bushing Affected by Damp for 110kV Main Transformer[J]. 2021, (5): 91-94.
DOI：

Li Lin, Liao Wenlong, Deng Yong. Failure Analysis on Bushing Affected by Damp for 110kV Main Transformer[J]. 2021, (5): 91-94. DOI： 10.16527/j.issn.1003-6954.20210518.

摘要

介绍了一起110 kV主变压器套管爆炸故障

对油色谱、套管检查结果进行了详细分析。结果表明

变压器套管注油孔胶垫老化变形、压缩量减小、密封失效、进水受潮是导致故障的根本原因。针对该故障提出了相应的整改措施。

Abstract

An explosion failure of 110 k V main transformer bushing is introduced

and it is analyzed in detail with oil chromatogram and bushing inspection. The results show that the rubber pad of oil-filling hole of transformer bushing becomes ageing and deformed

the compression is reduced and there is sealing failure resulting in damp condition

which is the root causes of the failure. Finally

the corresponding improvement measures are proposed.

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