Experimental Study on Breakdown Characteristics of SF<sub>6</sub>/N<sub>2</sub> Mixtures in Non-uniform Electric Field

CHEN Huili; XU Jianyuan; LI Luwei; SHAN Changwang; LIN Xin

doi:10.13296/j.1001-1609.hva.2016.12.017

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Experimental Study on Breakdown Characteristics of SF₆/N₂ Mixtures in Non-uniform Electric Field

更新时间：2025-04-26

- Experimental Study on Breakdown Characteristics of SF₆/N₂ Mixtures in Non-uniform Electric Field
- High VoltageApparatus Vol. 52, Issue 12, Pages: 110-115(2016)
- 作者机构：
  
  沈阳工业大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.12.017
  CLC： TM21
- Published：2016
- 稿件说明：
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[1]陈会利,徐建源,李璐维,单长旺,林莘.不均匀电场SF_6/N_2混合气体击穿特性的实验研究[J].高压电器,2016,52(12):110-115.

CHEN Huili, XU Jianyuan, LI Luwei, et al. Experimental Study on Breakdown Characteristics of SF₆/N₂ Mixtures in Non-uniform Electric Field[J]. High voltageapparatus, 2016, 52(12): 110-115.
[1]陈会利,徐建源,李璐维,单长旺,林莘.不均匀电场SF_6/N_2混合气体击穿特性的实验研究[J].高压电器,2016,52(12):110-115. DOI： 10.13296/j.1001-1609.hva.2016.12.017.

CHEN Huili, XU Jianyuan, LI Luwei, et al. Experimental Study on Breakdown Characteristics of SF₆/N₂ Mixtures in Non-uniform Electric Field[J]. High voltageapparatus, 2016, 52(12): 110-115. DOI： 10.13296/j.1001-1609.hva.2016.12.017.

摘要

文中对SF

混合气体在不均匀场下的击穿特性展开研究

通过测量棒—板电极在不同电极间距、混合比、压强下的正、负极性击穿电压值

分析电场不均匀度及气体压强对SF

混合气体极性效应的影响。研究结果表明:在0.1 MPa时

击穿电压随着电极间距的增大而增大

负极性的击穿电压高于正极性的击穿电压

在电极间距为12 mm时

负极性击穿电压是正极性击穿电压的1.71倍

而SF

气体与N

极性效应相反

表现为正极性的击穿电压略高于负极性的击穿电压;电极间距为4 mm时

随气体压强的升高负极性击穿电压增大

正极性的击穿电压出现饱和效应甚至出现击穿电压跌落现象

气体体积分数为20%时

0.4 MPa下的正极性击穿电压是0.35 MPa的91.3%。SF

混合气体的极性效应随着混合气体中SF

气体所占比例的下降发生极性反转现象。

Abstract

The breakdown characteristics of SF

mixtures in non-uniform electric field are studied. The positive and negative breakdown voltages are measured in the rod-plate electrode at different gap lengths

mixing ratios and pressures. The effects of polarity for different electric field distribution and gas pressure is analysed. It is shown that with a pressure of 0.1 MPa

the breakdown voltage in N

increases with the gap

length and the negative breakdown voltage is higher than the positive breakdown voltage. The former is 1.71 times of the latter for a gap length of 12 mm. opposite to N

the positive breakdown voltage of SF

gas is higher than its negative breakdown voltage. With a gap length of 4 mm

when the gas pressure increases the negative breakdown voltage of SF

increases while the positive breakdown voltage appears approaches saturation before it declines. When the pressure is 0.4 MPa

the positive breakdown voltage of 20%SF

/80%N

gas mixtures is 91.3% of that of 0.35 MPa pressure.The negative breakdown voltage is higher than the positive one when the SF

gas mixture ratio drops.

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Experimental Study on Breakdown Characteristics of SF6/N2 Mixtures in Non-uniform Electric Field

DOI：10.13296/j.1001-1609.hva.2016.12.017

摘要

Abstract

关键词

Keywords

references

Experimental Study on Breakdown Characteristics of SF₆/N₂ Mixtures in Non-uniform Electric Field