Analysis on Lightning Shielding Failure of Overhead Transmission Line and Its Countermeasure
四川电力技术2005年第6期 页码:6-7
作者机构:
达州电业局,四川,达州,635000
作者简介:
基金信息:
DOI:
中图分类号:TM862
纸质出版:2005
稿件说明:
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[1]罗斌.架空送电线路雷电绕击分析及对策[J].四川电力技术,2005(06):6-7.
Luo Bin. Analysis on Lightning Shielding Failure of Overhead Transmission Line and Its Countermeasure[J]. 2005, (6): 6-7.
[1]罗斌.架空送电线路雷电绕击分析及对策[J].四川电力技术,2005(06):6-7.DOI:
Luo Bin. Analysis on Lightning Shielding Failure of Overhead Transmission Line and Its Countermeasure[J]. 2005, (6): 6-7.DOI:
架空送电线路雷电绕击分析及对策
摘要
电力系统方面的过电压保护一直受非常重视
但系统内每年均会发生较多的各种过电压事故和障碍
其中雷击跳闸在线路故障跳闸中所占比例最大
而在运行工作中
因计算雷电绕击率较小
一般较易忽视雷电绕击问题。分析达州电业局电网220 kV代余线发生的雷击跳闸
探讨电力系统的雷电绕击问题。
Abstract
Much attention is always paid to overvoltage protection in power system
but there are various overvoltage accidents happened annually
in which the proportion of lighting-stroke trip-out is much bigger to line fault tripping.Because the calculated rate of shielding failure is quite small
the problem of lightning shielding failure is usually neglected.The lightning trip-out happened on 220 kV Dai-Yu transmission line in Dazhou power grid has been analyzed
and the lightning shielding failure in power system has been discussed as well.