Measurement and Analysis of the Coefficient of Restitution Between Conducting Particles and Electrodes in GIS

LYU Fangcheng; QI Yujuan; WANG Fochi; LIU Hongyu; CAO Dongliang

doi:10.13296/j.1001-1609.hva.2017.05.002

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Measurement and Analysis of the Coefficient of Restitution Between Conducting Particles and Electrodes in GIS

更新时间：2025-04-26

- Measurement and Analysis of the Coefficient of Restitution Between Conducting Particles and Electrodes in GIS
- High VoltageApparatus Vol. 53, Issue 5, Pages: 7-13(2017)
- 作者机构：
  
  1. 华北电力大学新能源与电力系统国家重点实验室
  2. 华北电力大学河北省输变电设备安全防御重点实验室
  3. 中国电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.05.002
  CLC： TM595
- Published：2017
- 稿件说明：
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[1]律方成,齐玉娟,汪佛池,刘宏宇,曹东亮.GIS中导电颗粒与电极碰撞系数的测量与分析[J].高压电器,2017,53(05):7-13.

LYU Fangcheng, QI Yujuan, WANG Fochi, et al. Measurement and Analysis of the Coefficient of Restitution Between Conducting Particles and Electrodes in GIS[J]. High voltageapparatus, 2017, 53(5): 7-13.
[1]律方成,齐玉娟,汪佛池,刘宏宇,曹东亮.GIS中导电颗粒与电极碰撞系数的测量与分析[J].高压电器,2017,53(05):7-13. DOI： 10.13296/j.1001-1609.hva.2017.05.002.

LYU Fangcheng, QI Yujuan, WANG Fochi, et al. Measurement and Analysis of the Coefficient of Restitution Between Conducting Particles and Electrodes in GIS[J]. High voltageapparatus, 2017, 53(5): 7-13. DOI： 10.13296/j.1001-1609.hva.2017.05.002.

摘要

在气体绝缘封闭组合电器（GIS）中

导电颗粒的运动是随机的

但是这种随机性取决于碰撞系数和颗粒接近同轴导体时的入射角。为了准确获得GIS中导电颗粒与电极的碰撞系数以指导颗粒运动特性的研究

笔者基于运动学原理搭建了导电颗粒与铜板发生碰撞时的碰撞系数测量平台

采用单因素试验的方法

分别研究了导电颗粒的半径、碰撞速度、涂层材料及厚度4个因素对碰撞系数的影响规律

并进行了回归分析。实验结果表明:导电颗粒的半径对碰撞系数无明显影响;随着碰撞速度的增大

导电颗粒的法向碰撞系数呈负指数幂规律下降

切向碰撞系数先减小后增大;涂覆一定厚度的硅橡胶和环氧树脂涂层后

能够增大导电颗粒的法向碰撞系数

且随着厚度的增加

法向碰撞系数基本呈现逐渐增加并趋于饱和的规律。

Abstract

In GIS

the motion of conducting particles is random but the randomness depends on the coefficient of restitution and angle of incidence when approaching the coaxial conductors. In order to obtain the coefficient of restitution between charged particles and electrodes accurately in GIS and guide the research of the moving characteristics of charged conducting particles

a measuring platform is built for the coefficient of restitution between the charged conducting particles and a copper plate based on the principle of kinematics. I have studied separately the effects of radius of conducting particles

colliding speed

coating material and coating thickness on the coefficient of restitution by single-factor experiment and the regression analysis has also been carried out. The results show that the radius of particles has no significant effects on the coefficient of restitution;with the increase of colliding velocity

the normal coefficient of restitution will decrease in a power function with a negative exponent

and the tangential coefficient of restitution will decrease at first and then increase;coating of silicon rubber and epoxy resin can increase the normal coefficient of restitution and with the increase of coating thickness

the coefficient of restitution basically all shows a law of gradually increasing firstly and finally tending to be saturated.

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