Discharge Defect of Free Metal Particle of 110 kV GIS Equipment and Its Disassembly Analysis

LIN Cen; QIU Wei; ZHOU Bo; YANG Hongquan; LIU Yanqin; LIU Xin; GAO Jun; ZENG Xiaowei

doi:10.13296/j.1001-1609.hva.2024.04.026

您当前的位置：

首页 >

文章列表页 >

Discharge Defect of Free Metal Particle of 110 kV GIS Equipment and Its Disassembly Analysis

Technical Discussion | 更新时间：2025-04-26

- Discharge Defect of Free Metal Particle of 110 kV GIS Equipment and Its Disassembly Analysis
- High Voltage Apparatus Vol. 60, Issue 4, Pages: 214-220(2024)
- 作者机构：
  
  国网四川省电力公司成都供电公司，成都　 610000
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2024.04.026
  CLC：
- Received：17 December 2023，
  
  Revised：28 February 2024，
  
  Published：16 April 2024
- 稿件说明：
移动端阅览
LIN Cen, QIU Wei, ZHOU Bo, et al. Discharge Defect of Free Metal Particle of 110 kV GIS Equipment and Its Disassembly Analysis[J]. High voltage apparatus, 2024, 60(4): 214-220.
DOI：

LIN Cen, QIU Wei, ZHOU Bo, et al. Discharge Defect of Free Metal Particle of 110 kV GIS Equipment and Its Disassembly Analysis[J]. High voltage apparatus, 2024, 60(4): 214-220. DOI： 10.13296/j.1001-1609.hva.2024.04.026.

摘要

介绍了一起110 kV GIS设备母线PT开关气室超声波信号异常的分析处理案例。通过幅值定位、时延定位和改变设备运行状态，判断缺陷来自于开关气室内部。对局放超声波信号进行多种测试图谱分析，认为该气室底部自由金属颗粒放电是产生异常超声波信号的主要原因。经开罐检查，发现开关静触头均压罩上存在明显刮痕，气室底部存在较多黑色固体碎屑，开关安装工艺不良导致金属碎屑掉落在气室底部，产生局部放电引起超声波信号异常。该起PT开关气室放电是一起较为典型的自由金属颗粒放电案例，为今后类似异常情况的分析处理提供了借鉴与参考。

Abstract

The analysis and treatment of abnormal ultrasonic wave in the disconnecting switch (DS) compartment of PT of 110 kV GIS is introduced. It is judged through amplitude location

time delay location and the change of equipment operation state that the defect is from the inside of the DS compartment. Multiple kinds of spectrum analysis on the partial discharge ultrasonic signal are performed

thinking that the free metal particle at the bottom the compartment is the main reason which causes abnormal ultra sonic wave signal. It is found by opening the enclosure that the grading cover of the stationary contact of the blade has obvious scratches and many black solid debris are at the bottom of the gas compartment. The weak installation process of the blade causes the metal debris to drop at the bottom of the gas compartment

generating partial discharge and causing the ultrasonic wave signal abnormal. The discharge of disconnecting switch of PT is a typical metal particle discharge case

which has provided experience and reference for the analysis of the similar abnormal situation in the future.

关键词

Keywords

references

Views

131

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on Characteristics Analysis Technology of Vibration Signal of Mechanical Defects in GIS Equipment

Installation and Abnormal Phenomena Analysis of Gas-insulated Metal Enclosed Switch Equipments

Application of X-ray Digital Imaging Defect Detection System in GIS Equipment

Analysis and Solution to a 126 kV GIS Equipment Fault

Dealing with Abnormal Pressure Rising in SF₆ Gas Chamber of 110kV GIS Equipment

Related Author

JIANG Xiping

WANG Zezhou

WANG Xupeng

LONG Yingkai

LI Yongfu

GUAN Jian1

WEI Wei2

LI Hai-wei1

Related Institution

State Grid Zhejiang Electric Power Co., Ltd.Haiyan County Power Supply Company

State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University

State Grid Chongqing Electric Power Company Electric Power Research Institute

Civil Engineering Institute of Water Conservancy, Agricultural University of South China

Guangdong Provincial Power Technology Improvement Company

⁰