Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing

LI Hua-liang; HAO Yu-liang; ZHONG Lei; LI Bo; SHEN Meng; WANG Lu; GUO Han

doi:10.13296/j.1001-1609.hva.2011.02.014

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Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing

更新时间：2025-04-26

- Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing
- High VoltageApparatus Vol. 47, Issue 2, Pages: 68-71(2011)
- 作者机构：
  
  西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.02.014
  CLC： TM411
- Published：2011
- 稿件说明：
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[1]李华良,郝宇亮,钟磊,李博,申萌,王露,郭晗.一起550kV油浸纸变压器套管工频闪络原因分析[J].高压电器,2011,47(02):68-71.

LI Hua-liang, HAO Yu-liang, ZHONG Lei, et al. Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing[J]. High voltageapparatus, 2011, 47(2): 68-71.
[1]李华良,郝宇亮,钟磊,李博,申萌,王露,郭晗.一起550kV油浸纸变压器套管工频闪络原因分析[J].高压电器,2011,47(02):68-71. DOI： 10.13296/j.1001-1609.hva.2011.02.014.

LI Hua-liang, HAO Yu-liang, ZHONG Lei, et al. Investigation on AC Flashover of a 550 kV Oil Impregnated Paper Transformer Bushing[J]. High voltageapparatus, 2011, 47(2): 68-71. DOI： 10.13296/j.1001-1609.hva.2011.02.014.

摘要

对一起550 kV变压器套管的工频闪络原因进行了分析

建立了套管和试验油缸的全尺寸有限元模型并对模型进行了有限元仿真

分析了小套管外壁有无气泡对套管内部电场分布的影响。最后提出试验前应将套管充分静置等防止此类事故的建议

对实际试验具有一定的指导意义。

Abstract

This paper analyses a typical AC flashover of 550 kV oil impregnated paper transformer bushing.The finite element model of the bushing and oil tank has been built and investigated according to the actual size.Moreover

the electrical field influence of small bubbles on the bushing casing has also been studied.Finally

practical suggestion has been proposed in order to prevent such similar failure.

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顾温国

Related Institution

Far East Cable Co., Ltd.

College of Electrical and Electronic Engineering, Shandong University of Technology

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西安交通大学

西安交通大学 710049

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