[1]梁富光.一起线路断线引发的避雷器击穿事故分析[J].电瓷避雷器,2020,(02):137-140,147.[doi:10.16188/j.isa.1003-8337.2020.02.022]
 LIANG Fuguang.Accident Analysis of Arrester Breakdown due to Transmission Line Broken[J].,2020,(02):137-140,147.[doi:10.16188/j.isa.1003-8337.2020.02.022]
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一起线路断线引发的避雷器击穿事故分析()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
137-140,147
栏目:
避雷器
出版日期:
2020-04-25

文章信息/Info

Title:
Accident Analysis of Arrester Breakdown due to Transmission Line Broken
作者:
梁富光
(国网福建省电力有限公司, 福州 350000)
Author(s):
LIANG Fuguang
(State Grid Fujian Electric Power Company, Fuzhou 350000, China)
关键词:
氧化锌避雷器 线路断线 过电压 ATP-EMTP
Keywords:
zinc-oxide surge arrester transmission line broken overvoltage ATP-EMTP
DOI:
10.16188/j.isa.1003-8337.2020.02.022
摘要:
断线过电压是电力系统常见的一种铁磁谐振过电压,严重的可引发避雷器击穿,电气设备外绝缘闪络等事故。以一起35 kV线路断线后避雷器击穿事故为例,分析线路断线后过电压的产生机理。首先介绍了故障避雷器的解剖过程,排除避雷器因质量、选型、受潮等原因引起的击穿。其次采用ATP-EMTP电磁暂态法详细分析故障线路的发生断线后的过电压产生机理。最终得出,由于跳线断线并接地,引起变压器和线路电容产生谐振过电压是引起避雷器本体击穿的主要原因。
Abstract:
Overvoltage caused by transmission line broken could lead to arrester breakdown or electrical equipment flashover. This paper discussed the mechanism of overvoltage by taking a breakdown accident of arrester caused by 35 kV transmission line broken as an example. Firstly the dissection of faulty arrestor was introduced. And arrester breakdown due to quality problem, type selection or wetting was excluded. ATP-EMTP software was used to analyze the mechanism of overvoltage after transmission line broken. Finally reach a conclusion that overvoltage caused by transmission line broken was the main reason of arrester breakdown.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-06-21作者简介:梁富光(1968—),男,学士,从事高电压与绝缘技术研究。
更新日期/Last Update: 2020-04-25