耦合地线在配电线路中的防雷研究  

Application of Coupling Ground Wire in Distribution Line Lightning Protection

作　　者：施纪栋[1] 彭发东 喇元 程文锋 胡贤德[1] 周浩[1] 

机构地区：[1]浙江大学电气工程学院,杭州310027 [2]广东电网电力科学研究院,广州510600

出　　处：《华东电力》2013年第12期2545-2549,共5页East China Electric Power

摘　　要：对配电线路中耦合地线的防雷效果、安装距离以及架设装置进行了研究。研究结果表明，耦合地线能够降低配电线路15％～40％的感应雷过电压，耦合地线安装高度可以选择低于线路最下方导线1m，而双耦合地线离电杆水平距离可取0．4m或0．5m。耦合地线架设装置可将传统抱箍两端加长制成。This paper researches the application of coupling ground wire in distribution lines in terms of the mounting distance, erection device and lighting protection effects. The results show that coupling ground wire can reduce 15%- 40% lightning induced voltages. The mounting height of coulpling ground wire should be one meter lower than the lowest transmission line. The horizontal distance between double coupling ground wires and line poles can be 0.4 m or 0.5 m. The erection device of coupling ground wire can be made by lengthening both sides of traditional hoop.

关 键 词：配电线路 感应雷过电压 防雷 耦合地线 

分 类 号：TM86[电气工程—高电压与绝缘技术]