节点文献
二层土壤中矩形复合接地网基础接地电阻计算
CALCULATION OF FOUNDATION GROUNDING RESISTANCE OF RECTANGULAR COMPOUND GROUNDING NETWORK IN TWO-LAYER SOIL
【摘要】 从静电场基本规律出发,应用镜象法以及静电场和恒定电流场之间的相似性,得出了存在3 种媒质情况下的静电场积分方程。用矩量法对其进行离散,得到相应的代数方程,并编制了 计算接地电阻的程序。文中所提方法可对二层土壤中矩形混凝土基础内复合地网接地电阻进 行计算。为检验该方法的正确性,将该方法对算例的计算结果与用文[3][4][7][8] [9]中方法对算例的计算结果进行了比较,二者很接近。
【Abstract】 Based on the basic laws of electrostatic field and by use of image method and similarity between electrostatic field and constant current field, t he integral equations for electrostatic field are obtained in the presence of th ree media. Carrying out the discretization of the equations the corresponding al gebraic equations are gained, then the calculation program for grounding resista nce is programmed. To validate the correctness of presented method, the calculat ion example given in this paper is calculated by the method in references [3] ,[4],[7],[8],[9] and the presented method respectively, the comparison of resul ts by the methods in references is very close to that by presented method. This method can be applied to grounding resistance calculation of compound grounding network installed in rectangular concrete foundation in two-layer soil.
【Key words】 grounding; two-layer soil; compound grounding netw ork; foundation grounding resistance;
- 【文献出处】 电网技术 ,Power System Technology , 编辑部邮箱 ,2001年10期
- 【分类号】TM862
- 【被引频次】13
- 【下载频次】111