两层土壤中正方形接地网接地电阻的解析计算  

The Analytic Calculation for the Grounding Resistance of a Square Grounding Grid within a Two-layer soil

作　　者：王洪泽[1] 

机构地区：[1]广西电力有限公司,广西南宁530023

出　　处：《广西电力技术》2001年第1期13-16,33,共5页Guangxi Electric Power Technology

摘　　要：M.M.A.Salama和 Y.L .Chow等人基于多重镜像原理及组合渐近线法所导出的两层土壤接地网电阻公式在一些情况下的计算误差较大 ,可达 2 0 %以上。为此 ,该文提出了改进的公式 ,与计算机数值方法比较 ,其计算误差通常都小于 10 %The deviation,under certain conditions,in calculation for grounding resistance of a grounding grid within a two layer soil by the formula which was derived eceording to the multiple image principle and compositive asymptetic line solution by authors including M M A Salama and Y L Chow,may be up to more than 20%.Therefore,this paper recommends a revised formula,the obtained result therefrom,in comparison with the calculated value by computer,will deviate generally less than 10%

关 键 词：两层土壤 接地网 接地电阻 解析计算 数值方法 计算机 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM152