山区水电站10 kV 线路及设备防雷措施仿真研究

摘要

According to the lightning accident of 10kV distribution lines and equipment of a mountain hydropower sta-tion , the causes of the accident are analyzed in this paper .Combined with ATP simulation software , the effects of un-balanced insulation, installing lightning arresters and coupling ground on 10kV lines and equipment are analyzed in detail respectively .Then two different lightning protection methods are proposed .At last, through the simulation and comparison by ATP software , the specific application on the 10kV lines and equipment of the above lightning protec-tion measures is obtained .%根据某山区水电站10 kV配电线路及设备的雷害情况，分析了事故发生的原因。结合ATP软件进行仿真，具体分析了不平衡绝缘、安装避雷器、安装耦合地线对10 kV线路及设备耐雷水平的影响。提出两种不同的防雷方案，运用ATP软件进行仿真并分析比较，最终得出上述防雷措施在该10 kV线路及设备中的具体应用方案。