架空线路雷击跳闸情况分析  

Analysis of Overhead Line Lightning Strike Tripping

作　　者：张怡捷 陈云鹏 曹亮 ZHANG Yijie;CHEN Yunpeng;CAO Liang(State Grid Jinshan Power Supply Company,SMEPC,Shanghai 200540,China)

机构地区：[1]国网上海市电力公司金山供电公司,上海200540

出　　处：《电力与能源》2023年第6期654-655,660,共3页Power & Energy

摘　　要：介绍了上海市金山地区架空线路实际运行中的雷害情况,并对该地区2019—2021年架空线路雷害进行了相应的故障分析,探索了线路雷击跳闸产生的原因。由此得到该地区雷击跳闸或雷击断线的主要原因,包括区域地闪情况严重、架空线路路径过长、绝缘匹配存在问题等。提出了结合金山地区地闪分布情况、设备状况和可靠性要求,采用装设架空避雷线、加装线路避雷器、使用避雷器脱离器、优化线路设计等措施来改进线路防雷。This paper introduces the lightning damage in the actual operation of overhead lines in Jinshan district of Shanghai,analyzes the corresponding faults of overhead lines in the last three years,and explores the causes of lightning strike tripping.It is concluded that the main causes of lightning trip or lightning breakdown in this area include serious ground lightning,excessively long overhead line path and insulation matching problems.Based on the distribution of ground lightning,equipment condition and reliability requirements in Jinshan area,various measures are put forward to improve line lightning protection,e.g.,installing overhead lightning arrester,installing line lightning arrester,using lightning arrester disconnecting device and optimizing line design.

关 键 词：城市配电网 架空线路 雷击跳闸 雷击断线 防雷措施 

分 类 号：TM863[电气工程—高电压与绝缘技术]