Simulation Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgear

YE Hai-feng 1; QIAN Yong 1; MAN Yu-yan 2; YAN Wei 2; WEI Ju-fang 2; SHENG Ge-hao 1; JIANG Xiu-chen 1

doi:10.13296/j.1001-1609.hva.2013.07.006

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Simulation Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgear

更新时间：2025-04-26

- Simulation Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgear
- High VoltageApparatus Vol. 49, Issue 7, Pages: 13-17+24(2013)
- 作者机构：
  
  1. 上海交通大学电气工程系
  2. 天津市电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.07.006
  CLC： TM591
- Published：2013
- 稿件说明：
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[1]叶海峰,钱勇,满玉岩,严玮,魏菊芳,盛戈皞,江秀臣.基于暂态地电压的开关柜局部放电仿真研究[J].高压电器,2013,49(07):13-17+24.

YE Hai-feng 1, QIAN Yong 1, MAN Yu-yan 2, et al. Simulation Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgear[J]. High voltageapparatus, 2013, 49(7): 13-17+24.
[1]叶海峰,钱勇,满玉岩,严玮,魏菊芳,盛戈皞,江秀臣.基于暂态地电压的开关柜局部放电仿真研究[J].高压电器,2013,49(07):13-17+24. DOI： 10.13296/j.1001-1609.hva.2013.07.006.

YE Hai-feng 1, QIAN Yong 1, MAN Yu-yan 2, et al. Simulation Analysis of Transient Earth Voltages Aroused by Partial Discharge in Switchgear[J]. High voltageapparatus, 2013, 49(7): 13-17+24. DOI： 10.13296/j.1001-1609.hva.2013.07.006.

摘要

分析了开关柜内部发生局部放电时

开关柜外表面暂态地电压的产生机理。基于有限积分方法

通过CST软件建立了开关柜仿真模型

研究了局部放电脉冲源的幅值、频率对TEV信号的影响。仿真结果显示:TEV信号的幅值与局部放电源的幅值成正比

局部放电源的频率越高

TEV信号越强;在开关柜表面传播时

不同探测点的TEV信号之间会有时延

提出了通过在开关柜表面布置多个TEV传感器

对开关柜内部局部放电源进行初步定位的方法。

Abstract

The mechanism of transient earth voltages（TEV）aroused by partial discharge in switchgears is analyzed.The Finite Integration Theory（FIT） was employed to simulate the propagation of TEV in the switchgear.The simulation results show that the pulse width of TEV increases as the pulse width of PD pulse increases

and the amplitude of TEV is proportional to the PD pulse amplitude.There are time differences between the TEV signals of different detecting points when the TEV propagating on the switchgear’s surface.Based on the simulation

a method of locating the PD in switchgear is proposed by positioning multi-sensors on the external surface of switchgear.

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