期刊论文

A New Gapped Arrester with Arc Transfer End Used for Preventing Lightning-Caused Breaking of Covered Conductors and Determination of the Gap Distance

中文

电瓷避雷器

1003-8337

2019

1

38-43

10.16188/j.isa.1003-8337.2019.01.006

湖南省教育厅科学研究项目:10kV配电线路的差异化防雷保护方法研究(编号:16C0007) 智能带电作业技术及装备(机器人)湖南省重点实验室开放研究课题基金资助(编号:2017KZD2002).

本校为其他机构

通过分析架空输电线路雷击断线机理,设计了一种由避雷器本体与高压穿刺电极组成的新型金属氧化物避雷器。高压电极与绝缘导线穿刺连接,在直击雷或感应雷作用下,引出高电位对避雷器本体顶端进行放电,即使发生避雷器本体损坏的情况,工频续流弧根也能转移至导弧角上灼烧,避免绝缘导线因烧灼而断线。并基于间隙放电电压的不稳定性,提出了基于韦伯分布的带间隙避雷器的间隙距离确定方法,通过大量的雷电冲击放电试验和数据处理分析,得到了高压穿刺电极的安装位置与间隙距离,避免了绝缘导线因雷击而发生断线故障。

A new type of metal oxide arrester composed of arrester body and high voltage puncture electrode was designed by analyzing the mechanism of overhead transmission line. The high potential is led out by piercing contact between the high voltage piercing electrode and insulated conductor. Under the action of direct lightning stroke and inductive lightning,the high potential is discharged to the top of the arrester body,even if the arrester body damage,the frequency of continuous arc can also be transferred to the arc angle Burn,to avoid insulated wire due to burning and broken. Based on the insta...