Fault Diagnosis and Analysis of Stable-nail Discharge in 500kV Transformer

WANG Ke-feng1; SUN Qing-sheng1; JIANG He-shun2; QIN Peng1; CHEN Xu-dong1; YANG Zhi-gang1; GONG Jian-jun1

doi:10.13296/j.1001-1609.hva.2012.03.019

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Fault Diagnosis and Analysis of Stable-nail Discharge in 500kV Transformer

更新时间：2025-04-26

- Fault Diagnosis and Analysis of Stable-nail Discharge in 500kV Transformer
- High VoltageApparatus Vol. 48, Issue 3, Pages: 95-98(2012)
- 作者机构：
  
  1. 合肥供电公司
  2. 淮南供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.03.019
  CLC： TM407
- Published：2012
- 稿件说明：
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[1]王克峰,孙庆生,江和顺,秦鹏,陈旭东,杨治纲,龚建军.一起500kV变压器稳钉悬浮放电故障的诊断与分析[J].高压电器,2012,48(03):95-98.

WANG Ke-feng1, SUN Qing-sheng1, JIANG He-shun2, et al. Fault Diagnosis and Analysis of Stable-nail Discharge in 500kV Transformer[J]. High voltageapparatus, 2012, 48(3): 95-98.
[1]王克峰,孙庆生,江和顺,秦鹏,陈旭东,杨治纲,龚建军.一起500kV变压器稳钉悬浮放电故障的诊断与分析[J].高压电器,2012,48(03):95-98. DOI： 10.13296/j.1001-1609.hva.2012.03.019.

WANG Ke-feng1, SUN Qing-sheng1, JIANG He-shun2, et al. Fault Diagnosis and Analysis of Stable-nail Discharge in 500kV Transformer[J]. High voltageapparatus, 2012, 48(3): 95-98. DOI： 10.13296/j.1001-1609.hva.2012.03.019.

摘要

笔者根据一台500 kV变压器在运行期间的油色谱分析结果判断变压器内部存在局部放电故障。通过吊罩解体检查确定故障原因为稳钉悬浮而导致的局部放电

对此类型故障进行了理论分析和经验总结

从而避免了故障的进一步发展和事故的发生

为今后500 kV变压器安全运行维护和技术监督积累了经验。

Abstract

A partial discharge fault was diagnosed by oil chromatographic analysis of a 500 kV transformer in operation.It was found that the fault was caused by partial discharge of a loose stable nail through fault analysis and dismantlement check.This kind of faults are analyzed theoretically and experientially to prevent the fault from worsening or even resulting in accident of transformer.

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