河南地区110kV输电线路采用单根避雷线的探讨

Study on the Single Shielding Line Applied in the 110kV Overhead Transmission Line of Henan

对河南地区110kV输电线路采用单根避雷线进行了相关研究。分析了河南电网雷击跳闸情况,开展了110千伏线路单、双避雷线耐雷水平和雷击跳闸率计算,对河南电网110千伏线路应用单、双避雷线进行了技术经济比较。结合河南电网雷电分布图的统计情况,以及相关规程要求,认为河南地区开展110千伏架空输电线路单避雷线运行是可行的。

The study on the single shielding line applied in the 110kV overhead transmission line had been stated in this paper.The probability of lighting tripping and the level of lighting withstanding voltage of the 110kV overhead transmission line with both cases of single shielding line and double shielding line had been computed and analyzed.In additional,both cases of application had been compared in technology and economy.In accordance with the lighting distribution graph of Henan province and the relative standards,the design of 110kV transmission line with single shielding line applied in the power grid of Henan, would be promising.