某110kV煤矿供电线路防雷现状研究与应用

Research and Application of Lightning Protection for 110 kV Coal Mine Power Supply Line

本文对110kV线路防雷措施、防雷现状进行介绍。通过测试与收集某110kV站1#110kV进线线路参数,通过对照标准和理论计算,对该条输电线路耐雷水平提出要求;结合ATP-EMTP仿真系统对输电系统仿真模型进行建立;利用仿真系统,阐述了接地电阻、绝缘配置、避雷器、避雷线对耐雷水平影响;通过理论分析及仿真分析,得到该110kV线路一次防雷系统评估报表,并对耐雷水平不符合国家标准杆塔进线原因分析,最终确定该线路防雷优化方案。

This paper introduces the lightning protection measures and current situation of the 110kV line.Through testing and collecting the parameters of 1×110kV incoming line of a 110kV station,and comparing with the standard and theoretical calculation,the lightning withstand level of the transmission line is required;the simulation model of the transmission system is established by combining with atp-emtp simulation system;the influence of grounding resistance,insulation configuration,arrester and lightning conductor on the lightning withstand level is elaborated by using the simulation system;through theoretical analysis and simulation results,the lightning protection level of the transmission line is improved The evaluation report of the lightning protection system of the 110kV line is obtained,and the reason why the lightning withstand level does not meet the national standard is analyzed,and the lightning protection optimization scheme of the line is finally determined.