输电线路杆塔接地电阻测量方法的研究  

Measurement Research of Shaft Tower Ground Resistance of Transmission Line

作　　者：江龙才[1] 

机构地区：[1]池州供电公司,安徽池州247000

出　　处：《安徽电力》2009年第1期5-8,共4页Anhui Electric Power

摘　　要：输电线路杆塔接地电阻的合格程度与线路的耐雷水平密切相关。由于接地电阻测量方法不正确,测量出的结果不能正确反映实际值,使不合格的杆塔接地不能得到及时有效的改造,杆塔极易受雷电的侵害,直接威胁到电网的安全运行。文中通过对池州电网山区不同地形杆塔接地电阻测量方法的研究和实践,总结并制定了规范的测量方法和步骤,提高了杆塔接地电阻测量的准确性,为接地电阻改造提供了科学依据。The qualified level of ground resistance of transmission tower is closely related with the lightning withstanding level of transmission line. The result measured can not correctly reflect the real value because the measurement method of the ground resistance is not correct, and the unqualified ground resistance of the shaft tower can not be improved promptly and effectively,thus the tower is struck by lightning easily,and the safe operating of electrical network suffers directly threatening. It was used in this paper for different method to measure ground resistance of different topography tower of Chi Zhon＇s electrical network practically. The reason of big ground resistance measurement error of production process is ana- lyzed compared with practical test data. The theory of the shaft tower ground resistance measurement method is used and the standard measurement method and step are summarized and worked out. Consequently,the accuracy of tower ground resistance measurement is enhanced and scientific evidence of improvement of ground resistance is provided.

关 键 词：输电线路 杆塔 接地电阻 测量方法 研究 

分 类 号：TM934.15[电气工程—电力电子与电力传动] TM726