接地网格的雷电冲击特性

被引:22
作者
高延庆
何金良
曾嵘
机构
[1] 清华大学电机工程系
关键词
暂态性能; 接地网格; 冲击电流;
D O I
暂无
中图分类号
TM862 [过电压保护装置];
学科分类号
摘要
系统地分析了发、变电站接地网格在雷电流作用下的冲击暂态特性 ,建立了基于分布的、时变电路参数的等效电路模型。该模型考虑了接地导体周围土壤电离引起的动态、非线性火花效应以及导体间互感的影响 ;详尽分析了不同接地装置的结构、雷电流波形以及雷电流注入点等因素对接地网格冲击特性的影响
引用
收藏
页码:9 / 12
页数:4
相关论文
共 4 条
[1]  
Transient performance of substation structures and associated grounding systems. Dawalibi F,Xiong W et al. IEEE Transactions on Industry Applications . 1995
[2]  
Frequency dependent and transient characteristics of substation grounding systems. Leonid D G,Markus H. IEEE Transactions on Power Delivery . 1997
[3]  
Transient performance of substation grounding systems subjected to lightning and similar surge currents. Xiong W,Dawalibi F. IEEE Transactions on Power Delivery . 1994
[4]  
Non - linear behaviour of ground electrodes under lightning surge currents: computer modelling and comparison with experimental results. Geri A,Garbagnati E et al. IEEE Transactions on Magnetics . 1992