35kV铜利线雷击跳闸原因分析及对策  

Lightning Stroke Tripping Causes Analysis and Countermeasures of 35kV Copper Wire

作　　者：赵启兵[1] 徐晓贝[1] 李万胜[1] Zhao Qibing;Xu Xiaobei;Li Wansheng(State Grid Hebi Power Supply Company,Hebi Henan 458030)

机构地区：[1]国网鹤壁供电公司,河南鹤壁458030

出　　处：《河南科技》2017年第1期131-132,共2页Henan Science and Technology

摘　　要：针对35kV铜利线频繁遭受雷击危害的问题,分析35k V线路受到雷击过电压的类型,总结出影响线路跳闸的主要形式是感应雷过电压,主要因素是耐雷水平和绝缘子的建弧率。通过对该线路的现场勘察,发现问题,并针对性地提出改造方法。应用结果表明,该方法实施有效,线路防雷水平提高。Aiming at the problem of 35kV copper wire being struck by lightning, this paper analyzed the type of lightning overvoltage caused by 35kV line. It wais concluded that the main form of line trip was induced lightning overvoltage, the main factor was the lightning withstand level and rate of arcing insulator. Through the field investigation of the line, the problems were found and the methods of improvement were put forward. The application results show that the method is effective and the lightning protection level is improved.

关 键 词：35KV线路 雷击过电压 改造方法 

分 类 号：TM863[电气工程—高电压与绝缘技术]