外串联间隙线路避雷器在商丘电网中的应用分析

从解决同塔双回线路雷击同时跳闸和保障牵引站的供电可靠性方面，进行了充分调研、论证，采取将外串联（纯）间隙（金属氧化物）线路避雷器安装在输电线路的易击段作为防雷措施。具体分析了雷击线路跳闸的原因，讨论了高压送电线路的防雷措施，以及外串联间隙避雷器的保护原理、选用原则以及安装前的准备工作。结果表明：近年来，已安装外串联（纯）间隙（金属氧化物）线路避雷器的杆塔未发生雷击跳闸。

Application of External Series Gap Arrester in Shangqiu Power Network

Lightning line the spectific reason for the trip were analyzed, high voltage transmission line lighting protection measures are discussed, and the protection principle of surge gap, the choose prihciples as well as the preparation before installation, power supply company from a solution of double circuit line on the same tower lightning stroke tripping at the same time and guarantee the traction station power supply reliability,a full investigation,argument,the external series gap （pure）（metal oxide lightning arrester） installed on transmission line easily attacked as lightning protection measures, results showed that in recent years,has been installed （pure）（external series gap metal oxide lightning arrester） line tower without the occurrence of lightning trip.