浙江电网降低高压输电线路雷击跳闸率的措施分析  

Analysis of Measures to Reduce Lightning Trip-out Rate of High-voltage Transmission Lines in Zhejiang Power Grid

作　　者：金祖山[1] 胡文堂[1] 龚坚刚[2] 吴明祥[1] 曾嵘[3] 

机构地区：[1]浙江省电力试验研究院,杭州310014 [2]浙江省电力公司,杭州310007 [3]清华大学电机系,北京100084

出　　处：《浙江电力》2010年第11期1-5,共5页Zhejiang Electric Power

摘　　要：为增强浙江电网高压输电线路的防雷能力,已采取了各种防雷措施,如降低杆塔接地电阻、加强绝缘水平、安装线路避雷器和增加耦合地线等,计算分析采取这些措施对雷击(反击或绕击)跳闸率的影响,提出了高压线路防雷的总体建议。In order to strengthen the lightning protection capability of high-voltage transmission lines in Zhe-jiang power grid,a variety of lightning measures are adopted,such as reducing tower ground resistance,improving insulation,installing line surge arrester and adding coupling ground wire etc.This paper calculates and analyzes the effect on the lightning trip-out（back striking and shielding failure） rate and puts forward the overall proposals of lightning protection for high-voltage transmission lines.

关 键 词：高压线路 防雷 效果 分析 建议 

分 类 号：TM862[电气工程—高电压与绝缘技术]