Investigate to Bushing Failure on Medium Voltage Side of a 500 kV Transformer

ZHANG Jian-xing1; ZHANG Jin-xiang1; WANG Jian-wei1; RU Fang-cong2

您当前的位置：

首页 >

文章列表页 >

Investigate to Bushing Failure on Medium Voltage Side of a 500 kV Transformer

更新时间：2025-04-26

- Investigate to Bushing Failure on Medium Voltage Side of a 500 kV Transformer
- High VoltageApparatus Vol. 44, Issue 6, Pages: 584-586(2008)
- 作者机构：
  
  1. 华北电网有限公司北京超高压公司
  2. 廊坊供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM216.5
- Published：2008
- 稿件说明：
移动端阅览
[1]张建兴,张金祥,王建伟,茹昉聪.一起500kV主变中压侧套管的缺陷分析[J].高压电器,2008,44(06):584-586.

ZHANG Jian-xing1, ZHANG Jin-xiang1, WANG Jian-wei1, et al. Investigate to Bushing Failure on Medium Voltage Side of a 500 kV Transformer[J]. High voltageapparatus, 2008, 44(6): 584-586.
[1]张建兴,张金祥,王建伟,茹昉聪.一起500kV主变中压侧套管的缺陷分析[J].高压电器,2008,44(06):584-586. DOI：

ZHANG Jian-xing1, ZHANG Jin-xiang1, WANG Jian-wei1, et al. Investigate to Bushing Failure on Medium Voltage Side of a 500 kV Transformer[J]. High voltageapparatus, 2008, 44(6): 584-586. DOI：

摘要

介绍了一起500 kV变电站主变中压套管的缺陷。通过返厂解体检查和事后分析

得出由于在生产卷制过程中连接带发生打褶

引起该处电场畸变

在长时间运行中该连接带在打褶处折断

折断处在导电杆和第一屏之间电压的作用下产生放电

引起乙炔含量超标和介损值变化过大。笔者针对上述情况提出了严格执行交接试验要求、加强绝缘检查和色谱跟踪等措施

以杜绝类似的缺陷发生。

Abstract

A bushing fault on middle voltage side of a main 500 kV transformer is introduced.Through disassembly inspection and analysis in factory

it was found that the fold on joint belt due to bend in manufacturing caused a distortion in the electrical field

which finally resulted in break of the belt after long running.Discharge hence happened under high voltage between current-carrying pole and first shield causing an overpro of C2H2 content and an fast increasing tanδ.Some measures

such as strictly controlling the production

strengthening insulation check and tracking chromatogram

are suggested in order to prevent the similar fault.

关键词

Keywords

references

Views

123

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Accident Analysis of Transformer Installation

Studies on Online Monitoring and Onsite Dielectric Loss Measurement of 500 kV Transformer Bushing

Analysis of Cable Sheath Overvoltage Due to Main Transformer No-load Closing

Prediction Model for Dissolved Gas in Transformer Oil Based on Policy Gradient Optimization

Research on Hybrid Finite Element Method Based on Triangle Mesh and Its Application in Fluid-heat Coupled Calculation of Transformer

Related Author

LIANG Fang-jian

LIU Xun

YANG Yan-qi

DONG Yuxi

XIE Deying

ZENG Li

XIE Bingping

ZHANG Caijun

Related Institution

Shangqiu Power Supply Company

Huizhou Electric Power Supply Bureau of Guangdong Power Grid Company Limited

Huiyang Ho Using and Urban and Rural Planning and Construction Bureau of Huizhou City

Hubei Bailianhe Pumped Storage Co.,Ltd.

School of Electrical Engineering, Wuhan University

⁰