【摘要】 为了减少雷击对输电线路的伤害,将线路避雷器安装在输电线路的易击段,可以提高线路的耐雷水平。鉴此,介绍了线路避雷器防雷的基本原理和安装前的准备工作。并对近年来肇庆四会供电分公司部分已挂网运行的避雷器进行了跟踪分析,原多雷击杆塔自从加装了线路带串联间隙避雷器后,迄今杆塔未发生雷击跳闸。更多还原

【Abstract】 To reduce the harm of lightning strokes to transmission lines,line arrestors can be installed on susceptible sections t to improve the lightning withstand level of lines.In this paper,the basic principles of lightning protection by line arrestors and preparations for installation are described.A tracking analysis is made on some inservice arrestors of Zhaoqing Sihui Power Supply Branch.Since the installation of line arresters with serial gaps,no tripout failures due to lightning strokes have ever happened on the susceptible towers.更多还原