气体灭弧防雷间隙安全性能分析  

Safety Analysis of Gas Arc-extinguishing Lightning Protection Clearance

作　　者：李继强[1] 王成全[1] 徐国强[1] 刘宗杰[1] 许浩 王巨丰 LI Ji-qiang;WANG Cheng-quan;XU Guo-qiang;LIU Zong-jie;XU Hao;WANG Ju-feng(State grid Jining Electric Power Supply Company,Jining 272111,China;Nanning Chaofu Electric Technology Co.,Ltd,Nanning 530004,China)

机构地区：[1]国网济宁供电公司,山东济宁272111 [2]南宁超伏电气科技有限公司,广西南宁530004

出　　处：《通信电源技术》2019年第12期9-11,14,共4页Telecom Power Technology

基　　金：国网山东省电力公司科技项目(SGTYHT/16-JS-198)

摘　　要：雷电作为当代电网第一事故源,危害极大。而传统的防雷技术措施由于原理限制、技术瓶颈等问题,加之输电线路输送容量大,自然条件复杂,导致线路防雷性能无法达标、耐雷水平低及雷击跳闸断线率高等问题。现有的防雷设备存在残压超标、热击穿引起短路、断路器频繁动作引起拒动以及变压器爆炸等安全事故,无法满足现代高标准的电力系统可靠安全性要求。因此,研究针对110 kV输电线路设计的固相气体灭弧防雷间隙安全性能问题,首先通过理论对其安全性进行分析,其次根据实验进行验证,最后利用数据统计证明其在运行中的可靠安全以及防护效果。As the first accident source of contemporary power grid,lightning is extremely harmful.The traditional lightning protection technical measures,due to the limitations of the principle,technical bottlenecks,etc.,combined with the large transmission capacity of the transmission line,the complex natural conditions,the lightning protection performance of the line can not reach the standard,the lightning resistance level is low,and the lightning strike trip rate is high.The existing lightning protection equipment has safety accidents such as residual voltage exceeding the standard,short circuit caused by thermal breakdown,refusal caused by frequent operation of the circuit breaker,and explosion of the transformer,which cannot meet the requirements of the modern high standard power system reliability and safety.The safety performance of solidphase gas arc-proof lightning protection gap designed for 110 kV transmission line is firstly analyzed by theory.Secondly,it is verified according to the experiment.Finally,the data is used to prove its reliable safety and protection during operation.effect.

关 键 词：气体灭弧 固相气体 并联间隙 电网安全 

分 类 号：TM8[电气工程—高电压与绝缘技术]