并联间隙在10kV架空线路中的应用方式  

Application of Parallel Clearance in 10kV Overhead Lines

作　　者：李晓晨[1] 汤昕[1] 焦艺哲 卢爽 杨鑫[2] LI Xiao-chen;TANG Xin;JIAO Yi-zhe;LU Shuang;YANG Xin(Changsha Electric Power Vocational and Technical College(The Technical Skills Central Training Department of State Grid Hunan Electric Power Corporation),Changsha 410131,China;School of Electrical and Information Engineering,Changsha University of Technology,Changsha 410114,China)

机构地区：[1]长沙电力职业技术学院(国网湖南省电力有限公司技术技能培训中心),长沙410131 [2]长沙理工大学电气与信息工程学院,长沙410114

出　　处：《价值工程》2023年第18期139-141,共3页Value Engineering

基　　金：湖南省教育厅科学研究项目“10kV架空绝缘导线防雷击断线的非穿刺式方法研究”(编号:20C0004)。

摘　　要：10kV架空线路雷击跳闸率高,而适用的防雷措施较少,采用并联间隙的方法可靠、免维护。本文建立了10kV架空线路的雷电过电压的仿真计算模型,分析了并联间隙3相和单相安装方式的防雷效果。认为:3相并联间隙虽然使线路耐雷水平下降,但可以全面保护线路绝缘子,在线路易遭受直击雷的情况下应考虑使用。单相并联间隙对线路耐雷水平有显著提升,可作为配电线路重要的防雷措施使用。10kV overhead lines have a high lightning trip rate,and there are few applicable lightning protection measures.The method of using parallel gaps is reliable and maintenance free.This article establishes a simulation calculation model for lightning overvoltage of 10kV overhead lines and analyzes the lightning protection effect of parallel gap 3-phase and single-phase installation methods.It is believed that although the 3-phase parallel clearance reduces the lightning resistance level of the line,it can comprehensively protect the line insulator,and should be considered for use when the line is prone to direct lightning strikes.The single-phase parallel clearance significantly improves the lightning resistance level of power lines and can be used as an important lightning protection measure for distribution lines.

关 键 词：10KV架空线路 耐雷水平 单相并联间隙 3相并联间隙 应用方式 

分 类 号：TM863[电气工程—高电压与绝缘技术]