北京地区某35 kV架空输电线路雷击故障分析  

Analysis of Lightning Fault on a 35 kV Overhead Transmission Line in Beijing Area

作　　者：李鸿达 焦政国 王雅妮 张睿哲 蔡瀛淼 周恺 LI Hongda;JIAO Zhengguo;WANG Yani;ZHANG Ruizhe;CAI Yingmiao;ZHOU Kai(State Grid Beijing Electric Power Company Electric Power Science Research Institute,Beijing Fengtai 100075,China;State Grid Beijing Electric Power Maintenance Company,Beijing Fengtai 100068,China)

机构地区：[1]国网北京市电力公司电力科学研究院,北京丰台100075 [2]国网北京市电力公司检修分公司,北京丰台100068

出　　处：《农村电气化》2024年第9期17-19,共3页Rural Electrification

摘　　要：雷电是造成架空输电线路故障的常见因素之一。针对北京地区某35 kV输电线路雷击故障,主要从线路情况、故障情况、现场勘查及检测几个方面进行介绍分析,根据勘查和检测结果对故障原因进行分析,得出故障原因是线路发生雷击后,由于避雷器计数器引线过长,导致其与避雷器延长杆之间的空气间隙过短而发生击穿,最后提出相应改进措施。Lightning is one of the common factors causing faults in overhead transmission lines.This paper focuses on the analysis of a lightning fault on a 35 kV transmission line in Beijing area.The introduction and analysis are mainly conducted from the aspects of line conditions,fault conditions,on-site investigation,and testing.Based on the investigation and testing results,the cause of the fault is analyzed.It is found that after the line is struck by lightning,the air gap between the counter lead of the lightning arrester and the extension rod of the lightning arrester is too short due to the excessive length of the counter lead,leading to breakdown.Finally,corresponding improvement measures are proposed.

关 键 词：输电线路 雷击 故障分析 

分 类 号：TM863[电气工程—高电压与绝缘技术]