基于ATP的超高压变电站二次设备防雷保护的仿真研究
首发时间:2008-09-18
摘要:通过对广东北部多雷区某500KV变电站发生的两次雷击事故原因进行分析研究,讨论了一点接地和多点接地两种等电位接地方式在弱电设备防雷中所起的作用。并利用目前普遍采用的电磁暂态仿真程序ATP,对该变电站现有接地方式(一点接地)在雷电流高频作用下的等效电路进行仿真分析,并提出整改措施。
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Simulation of secondary equipment lightning protection in EHV Substation based on ATP
Abstract:By studying on the cause of two-times lightning stroke accident occur in a 500kV substation of Area of Guangdong North Region.Discussed two equal potential grounding methods—one-point grounding and multi-point grounding.and their effect in the weak current equipments lightning protection.Then by using common Electro - magnetic Transient Program —ATP,simulated the high frequency equivalent circuit of one-point grounding used in the substation.At last,proposed remedy and reform measures.
Keywords: ATP secondary equipment lightning current one-point grounding
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No.2413331746512217****
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