基于10kV架空配电线路常用防雷措施防雷性能的研究  

Based on the study on the lightning protection performance of common lightning protection measures in 10 kV overhead distribution lines

作　　者：陈宏铭 CHEN Hongming(China Metallurgical CCID Electric Technology Co.,Ltd.,Chongqing 400010,China)

机构地区：[1]中冶赛迪电气技术有限公司,重庆400010

出　　处：《电气应用》2023年第8期63-68,共6页Electrotechnical Application

摘　　要：鉴于10 kV配电线路在雷雨高发季节易遭受雷击而引发线路故障的问题,搭建了10 kV配电线路直击雷、感应雷过电压的计算仿真模型,对不同防雷措施下的线路耐雷水平、雷击跳闸率进行相应测算,并基于不同安装方式下的防雷效果进行了对比分析。通过仿真结果可知,利用多腔室间隙的防雷措施取得的感应雷耐雷水平最高,氧化锌避雷器(Metal Oxide Arresters,MOA)次之,防弧金具最差;对于降低线路雷击跳闸率,采取安装多腔室间隙和避雷器的措施取得的效果最好;避雷器和多腔室间隙对相邻杆塔仍具备一定程度的保护效果,但多腔室间隙的保护效果高于避雷器。In view of the problem that 10 kV distribution lines are susceptible to lightning strikes and cause line failures during the high incidence of thunderstorms,this paper builds a calculation simulation model of direct lightning strike and induction lightning overvoltage of 10 kV distribution lines,and measures the lightning resistance level and lightning tripping rate of the lines under different lightning protection measures,and compares and analyzes the lightning protection effects based on different installation methods.Through the simulation results,it can be seen that the induced lightning resistance level obtained by using the lightning protection measures of the multi-chamber gap is the highest,followed by zinc oxide lightning arresters,and the worst anti-arc metal;For reducing the tripping rate of line lightning strikes,the best effect is achieved by installing multi-chamber clearance and lightning arresters;The arrester and the multi-chamber gap still have a certain degree of protection effect on adjacent towers,but the protection effect of the multi-chamber gap is higher than that of the arrester.

关 键 词：配电线路 防雷措施 安装方式 多腔室间隙 耐雷水平 

分 类 号：TM863[电气工程—高电压与绝缘技术]