Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS

SHI Wen; YANG Zhengli; CHEN Haixia; LU Zhuwei; WANG Dong; XIN Weifeng; LI Junhao

doi:10.13296/j.1001-1609.hva.2020.11.022

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Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS

更新时间：2025-04-26

- Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS
- High VoltageApparatus Vol. 56, Issue 11, Pages: 139-144(2020)
- 作者机构：
  
  1. 三江学院
  2. 国网河南省电力公司电力科学研究院
  3. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.11.022
  CLC： TM595;TM855
- Published：2020
- 稿件说明：
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[1]史文,杨正理,陈海霞,陆朱卫,王栋,辛伟峰,李军浩.GIS中自由金属微粒缺陷局部放电信号特征分析[J].高压电器,2020,56(11):139-144.

SHI Wen, YANG Zhengli, CHEN Haixia, et al. Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS[J]. High voltageapparatus, 2020, 56(11): 139-144.
[1]史文,杨正理,陈海霞,陆朱卫,王栋,辛伟峰,李军浩.GIS中自由金属微粒缺陷局部放电信号特征分析[J].高压电器,2020,56(11):139-144. DOI： 10.13296/j.1001-1609.hva.2020.11.022.

SHI Wen, YANG Zhengli, CHEN Haixia, et al. Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS[J]. High voltageapparatus, 2020, 56(11): 139-144. DOI： 10.13296/j.1001-1609.hva.2020.11.022.

摘要

自由金属微粒是影响GIS设备安全稳定运行的主要缺陷之一

为了进一步分析其产生的局部放电特性

文中设计了可等效模拟真实缺陷的独立密封试验模型

通过调节外施电压、微粒尺寸、微粒个数等措施

对微粒缺陷引发的局部放电PRPD谱图、n-φ谱图进行特征提取

并分析了特征形成的原因

尤其结合微粒运动形态

对各阶段微粒所带电荷的转移、中和现象进行阐述

为后续的研究和现场检测工作提供参考。

Abstract

Free metal particles are one of the main defects affecting the safe and stable operation of GIS equipment.In order to further analyze the characteristics of partial discharge produced by them

an independent sealing test model which can simulate real defects is designed in this paper.By adjusting applied voltage

particle size and number of particles

PRPD and n-φ spectra of partial discharge caused by particle defects are characterized.Analysis of the causes of formation of features

especially in the light of particle motion patterns

the transfer and neutralization of charges carried by particles at various stages are elaborated

which provides a reference for the follow-up research and field detection work.

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