接地电阻影响因素的研究  

STUDY OF INFLUENCE FACTORS ON GROUNDING RESISTANCE

作　　者：刘春[1] 何俊佳[1] 刘浔[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《高压电器》2003年第4期17-19,共3页High Voltage Apparatus

摘　　要：利用复合接地网接地电阻的三维单元网络模型,研究了几种接地网的接地电阻值。在消耗同样的工程用料情况下,比较了各种接地体的优劣,并对影响接地电阻大小的参数(如主框和侧边辐射线长度、接地网埋深、接地导体直径等因素)作了对比。计算结果可以用来指导接地网的设计。By using a3-dimensional unit net model,the grounding resistances of different combined grounding systems are obtained.Under the condition of same consumption of ma-terial,the merits and the demerits of various grounding grids are compared.The influence factors of embedding depth,di-ameter of grounding conductors and the length of the main-frame on the grounding resistance are investigated deeply.

关 键 词：接地电阻 接地网 三维单元网络模型 接地体 数值计算 

分 类 号：TM862[电气工程—高电压与绝缘技术]