Lightning Protection Characteristics of Surge Protective Gap Under Low Gas Pressure

SUN Wei; LI Yong; GUO Ruiyan; DU Xiaohui

doi:10.13296/j.1001-1609.hva.2014.01.004

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Lightning Protection Characteristics of Surge Protective Gap Under Low Gas Pressure

更新时间：2025-04-26

- Lightning Protection Characteristics of Surge Protective Gap Under Low Gas Pressure
- High VoltageApparatus Vol. 50, Issue 1, Pages: 26-30(2014)
- 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. 西安建筑科技大学机电工程学院
  3. 广东顺开电气集团有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.01.004
  CLC： TM862
- Published：2014
- 稿件说明：
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[1]孙伟,李勇,郭瑞艳,杜晓晖.间隙型浪涌保护器低气压条件下防雷保护特性研究[J].高压电器,2014,50(01):26-30.

SUN Wei, LI Yong, GUO Ruiyan, et al. Lightning Protection Characteristics of Surge Protective Gap Under Low Gas Pressure[J]. High voltageapparatus, 2014, 50(1): 26-30.
[1]孙伟,李勇,郭瑞艳,杜晓晖.间隙型浪涌保护器低气压条件下防雷保护特性研究[J].高压电器,2014,50(01):26-30. DOI： 10.13296/j.1001-1609.hva.2014.01.004.

SUN Wei, LI Yong, GUO Ruiyan, et al. Lightning Protection Characteristics of Surge Protective Gap Under Low Gas Pressure[J]. High voltageapparatus, 2014, 50(1): 26-30. DOI： 10.13296/j.1001-1609.hva.2014.01.004.

摘要

在低气压条件下

笔者对间隙型浪涌保护器（surge protective gap

SPG）的直流和脉冲电压击穿特性、电压保护水平、响应时间进行了实验研究。电极材料为钨铜

直径10 mm

间隙距离3 mm

气压范围1

000 Pa。结果显示

保护间隙的直流击穿电压和脉冲击穿电压在实验气压范围内均出现了极小值;保护间隙的压比（UP/UC）在2.10

.94之间;SPG的响应时间随气压升高而增大。

Abstract

A surge protective gap（SPG）is experimentally studied under low gas pressure ranging from 1 Pa to 2 000 Pa in terms of the characteristics of DC and impulse voltage breakdown

the voltage protection level

and the response time. The SPG is made of W-Cu materials with circular plate electrodes of 10 mm in diameter and 3 mm in gap.Experimental results indicate that a minimum appears in the DC breakdown voltage and the impulse breakdown voltage

the voltage ratio of UP to UC on the gap is from 2.10 to 2.94 under deferent gas pressure

and the response time increases gradually with gas pressure increasing.

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CHEN Jing-liang2

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Related Institution

State Key Loboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University

State Key Laboratory of Disaster Prevention and Reduction for Power Grid, Hunan Electric Power Corporation Disaster Prevention and Reduction Center

School of Electrical & Information Engineering, Changsha University of Science & Technology

西安高压电器研究所

710049

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