Experimental Study on Discharge Characteristics of Combined Air Gap with Floating Potential Conductor

WANG Shenghui; YANG Guanghua; CHEN Weijiang; ZHOU Jun; DING Yujian; LYU Fangcheng; LIU Yunpeng

doi:10.13296/j.1001-1609.hva.2018.04.001

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Experimental Study on Discharge Characteristics of Combined Air Gap with Floating Potential Conductor

更新时间：2025-04-26

- Experimental Study on Discharge Characteristics of Combined Air Gap with Floating Potential Conductor
- High VoltageApparatus Vol. 54, Issue 4, Pages: 1-7(2018)
- 作者机构：
  
  1. 华北电力大学
  2. 中国电力科学研究院
  3. 国家电网公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.04.001
  CLC： TM85
- Published：2018
- 稿件说明：
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[1]王胜辉,杨广华,陈维江,周军,丁玉剑,律方成,刘云鹏.含有电位悬浮导体的组合空气间隙放电特性实验研究[J].高压电器,2018,54(04):1-7.

WANG Shenghui, YANG Guanghua, CHEN Weijiang, et al. Experimental Study on Discharge Characteristics of Combined Air Gap with Floating Potential Conductor[J]. High voltageapparatus, 2018, 54(4): 1-7.
[1]王胜辉,杨广华,陈维江,周军,丁玉剑,律方成,刘云鹏.含有电位悬浮导体的组合空气间隙放电特性实验研究[J].高压电器,2018,54(04):1-7. DOI： 10.13296/j.1001-1609.hva.2018.04.001.

WANG Shenghui, YANG Guanghua, CHEN Weijiang, et al. Experimental Study on Discharge Characteristics of Combined Air Gap with Floating Potential Conductor[J]. High voltageapparatus, 2018, 54(4): 1-7. DOI： 10.13296/j.1001-1609.hva.2018.04.001.

摘要

为研究交流电压下含有电位悬浮导体的组合空气间隙放电特性

文中以棒—板组合空气间隙模型为研究对象

实验研究了悬浮导体的空间位置对组合间隙放电过程的影响。研究表明

悬浮导体位于高压电极或接地电极附近

短间隙在较低电压下首先被电弧短接

随着电压继续增加

整个间隙完成击穿;悬浮导体位于间隙中部

电压达到临界值时

多个间隙几乎同时击穿。电场仿真表明

悬浮导体引起的空间电场畸变是影响组合间隙放电过程的主要原因。在此基础上

通过实验进一步研究了悬浮导体长度、位置

高压电极和接地电极形状对击穿电压的影响。研究结果对深入理解含有电位悬浮导体的空气间隙放电机理以及击穿特性具有一定的参考价值。

Abstract

In order to study the discharge characteristics of combined air gap with floating potential conductor

theexperiment of rod-plane air gap is carried out to study the influence of conductor’s space position of breakdown pro-cess. The experiment shows that when floating conductor close to high voltage electrode or ground electrode

theshorter gap is bridged firstly by arc

after that complete discharge happens. If floating conductor is in the middle ofthe air gap

a plurality of air gaps is simultaneously breakdown. Electric field simulation shows that the space elec-tric field distortion caused by floating potential conductor is a major reason for the development process discharge ofcombined air gap. Based on those

the relationship between the length of floating potential conductor

or the shape ofelectrode and breakdown voltage of combined air gap is investigated by experiments. The experiment results are ana-lyzed and explained. The experiment and simulation results have significance for understanding the flashover charac-teristics of combined air gap with a floating potential conductor.

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