Electric Insulation Characteristics of Long Contact Gap in High Voltage Vacuum Interrupter

LIU Zhi-yuan1; ZHANG Ying-yao1; LIN Jian-fei2; JIANG Wei1; FU Wen-yuan1; GENG Ying-san1

doi:10.13296/j.1001-1609.hva.2010.01.025

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Electric Insulation Characteristics of Long Contact Gap in High Voltage Vacuum Interrupter

更新时间：2025-04-26

- Electric Insulation Characteristics of Long Contact Gap in High Voltage Vacuum Interrupter
- High VoltageApparatus Vol. 46, Issue 1, Pages: 9-12(2010)
- 作者机构：
  
  1. 西安交通大学电力设备电气绝缘国家重点实验室
  2. 陕西宝光真空电器股份有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.01.025
  CLC： TM561.5
- Published：2010
- 稿件说明：
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[1]刘志远,张颖瑶,林建飞,姜惟,傅文渊,耿英三.高电压真空灭弧室触头间长真空间隙静态绝缘特性研究[J].高压电器,2010,46(01):9-12.

LIU Zhi-yuan1, ZHANG Ying-yao1, LIN Jian-fei2, et al. Electric Insulation Characteristics of Long Contact Gap in High Voltage Vacuum Interrupter[J]. High voltageapparatus, 2010, 46(1): 9-12.
[1]刘志远,张颖瑶,林建飞,姜惟,傅文渊,耿英三.高电压真空灭弧室触头间长真空间隙静态绝缘特性研究[J].高压电器,2010,46(01):9-12. DOI： 10.13296/j.1001-1609.hva.2010.01.025.

LIU Zhi-yuan1, ZHANG Ying-yao1, LIN Jian-fei2, et al. Electric Insulation Characteristics of Long Contact Gap in High Voltage Vacuum Interrupter[J]. High voltageapparatus, 2010, 46(1): 9-12. DOI： 10.13296/j.1001-1609.hva.2010.01.025.

摘要

在真空开关向高电压方向发展的背景下

高电压真空灭弧室触头间长真空间隙的绝缘特性成为关键问题之一。Slade提出了临界击穿场强理论

解释了真空中平板电极间直流电压临界击穿场强及其与开距的关系。笔者以临界击穿场强理论为基础

以126 kV真空灭弧室触头间隙为研究对象

将临界击穿场强理论应用于长真空间隙（开距60 mm）和交流电压（工频50 Hz）情况下

得到了高电压真空灭弧室触头间长真空间隙的工频临界击穿场强与触头开距的关系。

Abstract

Based on the Slade’s critical field theory

we investigate the vacuum insulation characteristics between a pair of contacts in a 126 kV vacuum interrupter.In the case of long vacuum contact gap（60 mm）and AC voltage（50 Hz）

we obtain the relationship between critical breakdown field strength and contact gap.

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