Experimental Research on Composite Insulator Fault Detection

LU Fang-cheng1; LIU Jie 1; SHI Peng 2; WANG Fo-chi 1; XIONG Jun 3; LI Cong 1

doi:10.13296/j.1001-1609.hva.2013.05.018

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Experimental Research on Composite Insulator Fault Detection

更新时间：2025-04-26

- Experimental Research on Composite Insulator Fault Detection
- High VoltageApparatus Vol. 49, Issue 5, Pages: 95-100(2013)
- 作者机构：
  
  1. 华北电力大学河北省输变电设备安全防御重点实验室
  2. 保定供电局
  3. 广州供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.05.018
  CLC： TM216
- Published：2013
- 稿件说明：
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[1]律方成,刘杰,石鹏,汪佛池,熊俊,李聪.复合绝缘子故障检测方法的有效性分析[J].高压电器,2013,49(05):95-100.

LU Fang-cheng1, LIU Jie 1, SHI Peng 2, et al. Experimental Research on Composite Insulator Fault Detection[J]. High voltageapparatus, 2013, 49(5): 95-100.
[1]律方成,刘杰,石鹏,汪佛池,熊俊,李聪.复合绝缘子故障检测方法的有效性分析[J].高压电器,2013,49(05):95-100. DOI： 10.13296/j.1001-1609.hva.2013.05.018.

LU Fang-cheng1, LIU Jie 1, SHI Peng 2, et al. Experimental Research on Composite Insulator Fault Detection[J]. High voltageapparatus, 2013, 49(5): 95-100. DOI： 10.13296/j.1001-1609.hva.2013.05.018.

摘要

随着复合绝缘子在电网中用量增加

由复合绝缘子故障所引发的输电线路事故也相应增多

为此对运行复合绝缘子的潜在故障开展有效检测对于保障输电网络运行可靠性意义重大。笔者通过在运行复合绝缘子上人工模拟漏电起痕、表面金属颗粒附着、内部碳化通道等常见绝缘子故障

试验研究了紫外成像法、红外成像法和电场法检测方法检测这3类故障的效果

并分析了3种检测方法的有效性

结果表明:紫外成像法可有效检测引发复合绝缘子放电的故障缺陷;红外成像法可以检测发热故障

但对短时绝缘故障检测效果有限;电场法仅适合检测存在于绝缘子上较严重的短路性故障;潮湿气候条件更有利于绝缘子故障的检测

运行单位应加强雨雾天气或凌晨空气湿度较大气候条件下绝缘子的巡检工作。

Abstract

With the amount of composite insulators increasing in power network

the transmission accidents caused by the fault of composite insulator are increased.In order to ensure the reliability of the transmission network

it is important to detect the potential faults in composite insulators with correlation testing method.In the article

the faults of tracking

metal particle attached and internal carbonized channel were simulated on a running composite insulator.The ultraviolet imaging method

infrared imaging method and electric field method were used to detect the simulated faults and their detection results were analyzed.The results show that ultraviolet imaging method is favorable to detect the surface discharge failure.Infrared imaging method can test the faults causing partial temperature rising but not sensitive for short-term fault.Electric field method can only find out the serious short circuit fault.Furthermore

it is more advantageous for testing insulator faults under humid climate and the utilities should strengthen insulator inspection under raining

fog climate or detection at dawn.

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