Analysis and Treatment of the Overheating Fault in 220 kV GW6-type Disconnector Conductive Loop

XIAO Rong1; XU Cheng2

doi:10.13296/j.1001-1609.hva.2013.01.017

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Analysis and Treatment of the Overheating Fault in 220 kV GW6-type Disconnector Conductive Loop

更新时间：2025-04-26

- Analysis and Treatment of the Overheating Fault in 220 kV GW6-type Disconnector Conductive Loop
- High VoltageApparatus Vol. 49, Issue 1, Pages: 107-110(2013)
- 作者机构：
  
  1. 中国长江电力股份有限公司检修厂
  2. 溪洛渡水力发电厂
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.01.017
  CLC： TM564.1
- Published：2013
- 稿件说明：
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[1]肖荣,徐澄.220kV GW6型隔离开关导电回路过热故障分析及处理[J].高压电器,2013,49(01):107-110.

XIAO Rong1, XU Cheng2. Analysis and Treatment of the Overheating Fault in 220 kV GW6-type Disconnector Conductive Loop[J]. High voltageapparatus, 2013, 49(1): 107-110.
[1]肖荣,徐澄.220kV GW6型隔离开关导电回路过热故障分析及处理[J].高压电器,2013,49(01):107-110. DOI： 10.13296/j.1001-1609.hva.2013.01.017.

XIAO Rong1, XU Cheng2. Analysis and Treatment of the Overheating Fault in 220 kV GW6-type Disconnector Conductive Loop[J]. High voltageapparatus, 2013, 49(1): 107-110. DOI： 10.13296/j.1001-1609.hva.2013.01.017.

摘要

针对近年来某电站220kV GW6型隔离开关多起导电回路过热故障

通过对过热部件的试验、分解检查和分析

发现导电回路接触部位的表面处理工艺缺陷以及接触面配合尺寸的偏差是引起该结构隔离开关局部过热故障的主要原因

提出了导电接触面防氧化处理和采用双面镀锡铜导电带进行补偿的解决方案

通过实施该方案后的设备实际运行状况良好。

Abstract

In recent years

many overheating faults have happened in 220 kV GW6-type disconnector conducting loop of a power plant.By mean of disassembly examination of overheating components and analysis

this paper found that the conducting surface process defects and unacceptable components size deviation are the main reasons for inducing overheating faults of this type disconnector.Solutions are put forward

which include anti-oxidized treatment of conducting surface

and using two-sided tin-plating copper belt for compensation.It has been verified in following actual operation.

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