摘要
针对输电线路实际雷电参数的差异性,提出了差异化防雷概念。选取某一典型220 k V输电线路的雷电参数,基于实际雷电活动参数对输电线路雷击跳闸率进行分段计算,确定雷击薄弱点,并针对性采取杆塔降阻、加装线路避雷器、加装可控放电避雷针等措施,该线路的雷击事故明显减少,防雷效果良好。
Aiming at differentiation of transmission line actual lightning parameters, this paper raised the differentiation lightning protection concept. Certain typical 220 k V transmission line＇s lightning parameters were selected. This paper carried out section calculation based on actual lightning activity parameters on transmission line lightning trip ratio, determining lightning weak point, and taking pole and tower resistance reduction, adding line arresters, adding controllable discharge lightning rods etc measures. The lightning accident on the line is obviously reduced and lightning protection effect is good.
出处
《电工电气》
2014年第12期18-20,共3页
Electrotechnics Electric
关键词
输电线路
雷电参数
跳闸率
差异化防雷
transmission line
lightning parameter
trip ratio
differentiation lightning protection
作者简介
刘承胜（1990-），男，硕士研究生，研究方向为输电线路防雷。
