摘要
降低杆塔接地电阻是减小输电线路雷击事故的重要措施,分析了接地装置冲击散流特性,介绍了接地装置冲击接地阻抗各种表示方式及其物理定义及输电线路杆塔接地装置降阻改造方法及建议。
Reducing the tower impulse grounding resistance is an important way to decrease the transmission line failures caused by lightning stroke.The definition and expression formula of tower impulse grounding resistance are introduced,and the impulse characteristics of grounding device are analyzed.Furthermore,several methods and suggestions for reducing tower impulse grounding resistance are presented.
出处
《四川电力技术》
2011年第3期61-63,共3页
Sichuan Electric Power Technology
关键词
杆塔接地
冲击接地电阻
降阻
tower grounding
impulse grounding resistance
reducing resistance
