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《Electric Engineering》 2018-15
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Analysis on Lightning Activity Parameters of ±800kV Binjin Line Corridor in Zhejiang Province

LI Te;LUO Tianyan;WANG Shaohua;ZHOU Xiangxian;WU Jun;Electric Power Research Institute of State Grid Zhejiang Electric Power Company;Wuhan NARI Limited Company of State Grid Electric Power Research Institute;  
In order to master the lightning activity parameters of±800 kV Binjin line in Zhejiang,and take them as the basis of the lightning protection computation of the line,the Binjin line is meshed and the lightning parameters from 2010 to 2016 are analysed based on the lightning monitoring system.The results indicate that the meshes near the province boundary between Zhejiang and Jiangxi and the meshes near Jinhua converter station have more lightning days and higher cloud-to-ground lightning density than the rest section.The cumulative probability distribution of lightning current amplitude can be well fitted by the recommended formula IEEE.The numbers of main discharge return-stroke of positive cloudto-ground lightning are less than that of negative cloud-to-ground lightning along the line,and the lightning days and cloud-to-ground lightning density vary greatly in different years.However,both the proportion of positive cloud-to-ground lightning and the numbers of main discharge return-stroke keep stable.
【CateGory Index】: TM863
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