配电网架防雷措施研究  

作　　者：周玲 徐一峰 

机构地区：[1]国网嘉兴供电公司,浙江嘉兴314000 [2]国网苏州供电公司,江苏苏州215000

出　　处：《科技创新与应用》2023年第34期156-159,共4页Technology Innovation and Application

摘　　要：为保障20 kV配电网架空线路的安全稳定运行,分析当前20 kV配电网架空线路的运行情况,尤其是在雷雨季节的运行情况。探讨氧化锌避雷器、防弧金具、带间隙氧化锌避雷器、架空地线(架设耦合地线)和绝缘横担等几种常见的防雷措施的优缺点。结合20 kV架空线的实际特点,通过对雷击跳闸导致线路设备故障的情况进行研究,对耦合系数进行计算,得出针对20 kV配电网架空线路的主干线、分支线、配电变压器台区等不同的部分,采取的不同防雷措施,以达到最佳防雷效果,为以后20 kV配电网建设作参考。In order to ensure the safe and stable operation of overhead lines in 20 kV distribution network,the operation of overhead lines in 20 kV distribution network is analyzed,especially in thunderstorm season.This paper discusses the advantages and disadvantages of several common lightning protection measures,such as zinc oxide lightning arrester,arc protection hardware,zinc oxide lightning arrester with gap,overhead ground wire(erection of coupled ground wire),insulation cross pole and so on.According to the actual characteristics of 20 kV overhead lines,through the study of line equipment faults caused by lightning tripping and the calculation of coupling coefficient,different lightning protection measures are obtained for different parts of 20 kV distribution lines,such as trunk lines,branch lines,distribution transformer stations and so on,in order to achieve the best lightning protection effect,which can be used as a reference for the construction of 20 kV distribution network in the future.

关 键 词：20 kV架空线路 防雷措施 避雷器 绝缘横担 架空地线 

分 类 号：TM73[电气工程—电力系统及自动化]