Mechanical Faults Analysis of High Voltage Disconnectors and Review of Diagnosis Technology

QIU Zhibin; RUAN Jiangjun; HUANG Daochun; ZHANG Yu; ZHANG Enwei

doi:10.13296/j.1001-1609.hva.2015.08.029

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Mechanical Faults Analysis of High Voltage Disconnectors and Review of Diagnosis Technology

更新时间：2025-04-26

- Mechanical Faults Analysis of High Voltage Disconnectors and Review of Diagnosis Technology
- High VoltageApparatus Vol. 51, Issue 8, Pages: 171-179(2015)
- 作者机构：
  
  1. 武汉大学电气工程学院
  2. 国网江西省电力科学研究院
  3. 国网冀北电力有限公司检修分公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.08.029
  CLC： TM564.1
- Published：2015
- 稿件说明：
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[1]邱志斌,阮江军,黄道春,张宇,张恩伟.高压隔离开关机械故障分析及诊断技术综述[J].高压电器,2015,51(08):171-179.

QIU Zhibin, RUAN Jiangjun, HUANG Daochun, et al. Mechanical Faults Analysis of High Voltage Disconnectors and Review of Diagnosis Technology[J]. High voltageapparatus, 2015, 51(8): 171-179.
[1]邱志斌,阮江军,黄道春,张宇,张恩伟.高压隔离开关机械故障分析及诊断技术综述[J].高压电器,2015,51(08):171-179. DOI： 10.13296/j.1001-1609.hva.2015.08.029.

QIU Zhibin, RUAN Jiangjun, HUANG Daochun, et al. Mechanical Faults Analysis of High Voltage Disconnectors and Review of Diagnosis Technology[J]. High voltageapparatus, 2015, 51(8): 171-179. DOI： 10.13296/j.1001-1609.hva.2015.08.029.

摘要

高压隔离开关故障频发严重威胁电网安全稳定运行

机械故障是户外隔离开关出现最多的故障类型。分析了支柱瓷绝缘子断裂、操作失灵、锈蚀等隔离开关典型机械故障发生的原因

综述了超声波探伤、振动声学法、红外热像法、应力应变测试、驱动电机电流检测等高压隔离开关机械故障诊断方法的研究现状。采用电阻应变测量技术和驱动电机电流信号分析检测了隔离开关传动或转动机构卡涩故障信号

并对试验结果进行了初步分析。在此基础上

提出了高压隔离开关机械故障综合诊断建议

可为户外变电站高压隔离开关安装调试及运行维护管理提供参考。

Abstract

Frequent faults of high voltage（HV）disconnectors seriously threaten the safety and stability of power grid. Mechanical faults are the most common failure type of outdoor disconnectors. In this study

the causes of the typical mechanical faults of a disconnector

including rupture of porcelain post insulator

malfunction and corrosion

were analyzed. And the present researches on mechanical fault diagnostic methods of HV disconnectors

such as ultrasonic flaw detection

acoustic vibration technique

infrared thermography

stress-strain measurement

and driving motor current signal detection

were reviewed. Furthermore

sticking faults of transmission or rotating mechanism of a disconnector were detected by resistance strain gauge and motor current signal analysis

and the results were preliminarily analyzed. On this basis

several suggestions about comprehensive mechanical fault diagnosis of HV disconnector were offered to provide reference for installation

debugging

operation and maintenance of HV disconnectors in outdoor substations.

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