Vacuum Insulation Characteristics with Long Contact Gaps between High Voltage Vacuum Interrupter Contacts

LIU Zhi-yuan

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Vacuum Insulation Characteristics with Long Contact Gaps between High Voltage Vacuum Interrupter Contacts

更新时间：2025-04-26

- Vacuum Insulation Characteristics with Long Contact Gaps between High Voltage Vacuum Interrupter Contacts
- High VoltageApparatus Vol. 45, Issue 2, Pages: 66-69(2009)
- 作者机构：
  
  西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM831
- Published：2009
- 稿件说明：
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[1]刘志远.高电压真空灭弧室触头间长间隙的真空绝缘特性[J].高压电器,2009,45(02):66-69.

LIU Zhi-yuan. Vacuum Insulation Characteristics with Long Contact Gaps between High Voltage Vacuum Interrupter Contacts[J]. High voltageapparatus, 2009, 45(2): 66-69.
[1]刘志远.高电压真空灭弧室触头间长间隙的真空绝缘特性[J].高压电器,2009,45(02):66-69. DOI：

LIU Zhi-yuan. Vacuum Insulation Characteristics with Long Contact Gaps between High Voltage Vacuum Interrupter Contacts[J]. High voltageapparatus, 2009, 45(2): 66-69. DOI：

摘要

对高电压真空灭弧室触头间长真空间隙（40 mm及以上）的真空绝缘特性进行了讨论

包括击穿电压（直流电压

工频交流电压和标准雷电冲击电压）与触头开距的关系以及长真空间隙的老炼特性。目前对72/84 kV级高电压真空灭弧室触头间隙范围（40 mm及以上）的长真空间隙绝缘特性有了一定的了解

而126 kV级高电压单断口真空灭弧室触头间长真空间隙范围（60 mm及以上）的绝缘特性研究还有待深入开展。

Abstract

The vacuum insulation characteristics of a long gap（no less than 40 mm） between two contacts in high voltage vacuum interrupters（VIs） are discussed

including the relationship between breakdown voltage（DC voltage

power frequency voltage and lightning impulse voltage） and contact gap

and the conditioning characteristics of long contact gaps in vacuum.The vacuum insulation characteristics of the long gaps with the size of no less than 40 mm in 72/84 kV VIs are hence understood to a certain extent.However

the vacuum insulation characteristics of the long gaps with the size of no less than 60 mm in 126 kV single break VIs still need further investigating.

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