长导线不同回路时雷击特性分析  

The Analysis of the Lightning Stroke Characteristics of Long Wire in Different Circuit

作　　者：高鑫[1] 刘全桢[1] 毕晓蕾[1] 姜辉[1] 张云朋[1] 

机构地区：[1]中国石化青岛安全工程研究院化学品安全控制国家重点实验室,山东青岛266071

出　　处：《电瓷避雷器》2013年第1期94-97,共4页Insulators and Surge Arresters

基　　金：国家科技支撑计划项目(编号:2012BAK03B03)

摘　　要：使用8/20μs冲击电流对长导线进行雷电特性的研究,通过对测试结果分析发现长导线在雷电流通过时会产生较高的电压降,而且导线的冲击阻抗受导线回路的影响。通过理论计算分析,认为导线冲击阻抗与导线回路的大小成对数规律变化。The lightning stroke characteristics of long wire are studied in the article by using 8/20 μs impulse current. The test result indicates that the long wire would produce higher voltage when the lightning current pass through. And the impulse impedance of the wire is affected by the wire circuit. At last, though computational analysis it is considered that the impulse impedance of the wire is in a logarithmic law with the wire circuit.

关 键 词：冲击电流 导线 阻抗 

分 类 号：TM863[电气工程—高电压与绝缘技术]