屏蔽效率在输电线路防雷性能分析中的应用研究  

The Application of Lightning Protection Efficiency on the Analysis of Transmission Line Lightning Protection Performance

作　　者：唐震[1] 代润玲 

机构地区：[1]山西电力科学研究院,山西太原030001 [2]太原供电公司,山西太原030012

出　　处：《山西电力》2012年第6期1-4,共4页Shanxi Electric Power

摘　　要：针对我国现行的输电线路的雷电屏蔽系统设计及其性能估算具有一定局限性的问题,结合电气几何模型等计算方法,利用绝缘子串50%放电电压、电气几何模型中击距系数等因素,提出了一种防雷效率的计算方法,并根据算例的结果提出了防雷效率在输电线路防止雷电绕击性能分析中的判别依据。There are limits in the design and performance of the lightning shielding system for the transimission line in China. In this paper, based on Electro-Geometric Model（EGM）, a new method for calculating lightning protection efficency is put forward, which involves the factors including 50% discharging voltage of insulator chain and striking distance factors of EGM. According to the result of the algorithm, it proposed the judging criteria of lightning protection efficiency on the perfbrmance of lightning stroke shielding of transmission line.

关 键 词：输电线路 防雷效率 击距 击距系数 

分 类 号：TM853[电气工程—高电压与绝缘技术]