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提高35kV架空输电线路反击耐雷水平的仿真优化分析

DOI: 10.16188/j.isa.1003-8337.2015.01.022, PP. 110-114

Keywords: ATP-EMTP,反击耐雷水平,雷电流,冲击接地电阻,线路避雷器

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Abstract:

以山西某煤矿35kV架空线路为实际背景,利用ATP-EMTP仿真软件计算雷击杆塔情况下线路系统的反击耐雷水平。结果表明:对于线路处于易击段的杆塔,在特定的冲击接地电阻值下,在杆塔的不同相加装线路避雷器,系统的反击耐雷水平具有很大差异。对于该类型的线路杆塔,需要结合实际情况选取合理方案,这样既可以使线路系统反击耐雷水平达到预期效果,又能够给防雷施工节省开支、带来便捷。仿真计算结果对35kV线路防雷设计、改造提供了参考依据。

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