Analysis and Treatment of a 500kV Hybrid Gas Insulated Switchgear Accident

WANG Xiaoming; HE Ping; LIU Yan; YAN Nianping

doi:10.13296/j.1001-1609.hva.2014.01.024

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Analysis and Treatment of a 500kV Hybrid Gas Insulated Switchgear Accident

更新时间：2025-04-26

- Analysis and Treatment of a 500kV Hybrid Gas Insulated Switchgear Accident
- High VoltageApparatus Vol. 50, Issue 1, Pages: 129-132(2014)
- 作者机构：
  
  1. 江西省电力公司
  2. 江西省电力公司检修分公司
  3. 江西省电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.01.024
  CLC： TM595
- Published：2014
- 稿件说明：
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[1]汪晓明,何萍,刘衍,晏年平.一起500kV HGIS事故的分析及处理[J].高压电器,2014,50(01):129-132.

WANG Xiaoming, HE Ping, LIU Yan, et al. Analysis and Treatment of a 500kV Hybrid Gas Insulated Switchgear Accident[J]. High voltageapparatus, 2014, 50(1): 129-132.
[1]汪晓明,何萍,刘衍,晏年平.一起500kV HGIS事故的分析及处理[J].高压电器,2014,50(01):129-132. DOI： 10.13296/j.1001-1609.hva.2014.01.024.

WANG Xiaoming, HE Ping, LIU Yan, et al. Analysis and Treatment of a 500kV Hybrid Gas Insulated Switchgear Accident[J]. High voltageapparatus, 2014, 50(1): 129-132. DOI： 10.13296/j.1001-1609.hva.2014.01.024.

摘要

介绍了某500 kV变电站一起500 kV混合式气体绝缘开关组合电器（HGIS）事故

解体发现VT气室盆式绝缘子放电烧裂成碎片

分析得出盆式绝缘子质量不良是事故发生的直接原因。对故障设备进行了更换

对同批次盆式绝缘子进行了化学、电气等诊断性试验

并根据诊断结果提出了相应的防范措施。

Abstract

An accident of a 500 kV hybrid gas insulated switchgear（HGIS） in a 500 kV substation is analyzed.Disassembly inspection of the HGIS reveals that the basin insulator for VT chamber has been burnt into pieces due to discharge

and the poor quality of the basin insulator caused this accident. Subsequently

this malfunctioned equipment is replaced

and chemical and electrical tests are conducted for the basin insulators in same batch. In addition

some countermeasures are suggested.

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