Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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基于实际雷电参数的输电线路差异化防雷研究

来源:电工电气发布时间:2016-04-06 15:06 浏览次数:1

基于实际雷电参数的输电线路差异化防雷研究 

刘承胜 
华中科技大学 电气与电子工程学院,湖北 武汉 430074 
 

摘 要:针对输电线路实际雷电参数的差异性,提出了差异化防雷概念。选取某一典型220kV输电线路的雷电参数,基于实际雷电活动参数对输电线路雷击跳闸率进行分段计算,确定雷击薄弱点,并针对性采取杆塔降阻、加装线路避雷器、加装可控放电避雷针等措施,该线路的雷击事故明显减少,防雷效果良好。
关键词:输电线路;雷电参数;跳闸率;差异化防雷
中图分类号:TM863 文献标识码:A 文章编号:1007-3175(2014)12-0018-03


Study on Differentiation Lightning Protection for Transmission Lines Based on Actual Lightning Parameter 

LIU Cheng-sheng 
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China 
 

Abstract: Aiming at differentiation of transmission line actual lightning parameters, this paper raised the differentiation lightning protection concept. Certain typical 220 kV transmission line’s lightning parameters were selected. This paper carried out section calculation based on actual lightning activity parameters on transmission line lightning trip ratio, determining lightning weak point, and taking pole and tower resistance reduction, adding line arresters, adding controllable discharge lightning rods etc measures. The lightning accident on the line is obviously reduced and lightning protection effect is good.
             Key words: transmission line; lightning parameter; trip ratio; differentiation lightning protection


参考文献
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