变电站分层土壤模型构建对土壤电阻率测量深度的要求

Measurement Depth of Soil Resistivity Required by Construction of Layered Soil Model in Substation

摘要:

采用接地系统辅助设计软件包CDEGS，通过对变电站分层土壤模型下地网接地电阻、散流特性仿真计算，研究了模型构建深度对地网接地电阻计算误差的影响，并提出了构建模型所需的合理测量范围及深度。

Abstract:

Through the simulation calculation of grounding resistance and stray current characteristics of grounding grid under the layered soil model of substation,the influence of the depth of model construction on the calculation error of grounding resistance of grounding grid is studiedby using CDEGS software package of grounding system aided design, and the reasonable measurement range and depth required for establishing the model are proposed.