| 大型工矿企业总降接地网设计机辅分析 |
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| 引用本文：黄小银,陈 恳,程晓煜,唐俊娥.大型工矿企业总降接地网设计机辅分析[J].电网与清洁能源,2010,26(7):53~57 |
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| 基金项目:江西省科技支撑项目（50177007） |
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| 中文摘要:从某一拟新建110 kV总降变电所所址的实测土壤电阻率出发，提出一种基于CYMEGRD计算机辅助分析的接地网设计方法。主要内容包括：现场视在接地电阻率测量，得到土壤结构模型；计算出水平不均匀分层土壤条件下不同地网结构的接地电阻；分析并设计得到更经济合理的地网结构；给出地网的电位升、接触电压和跨步电压的分布图。同时提出采用生物菌接地降阻剂改善土壤电阻率。 |
| 中文关键词:CYMGRD 接地网 双层土壤模型 生物菌降阻剂 |
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| Computer-Aided Design and Analysis of the Grounding System of the Step-down Substation for the Large-scale Industrial and Mining Enterprise |
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| Abstract:Starting from the real-measured soil resistivity of a proposed 110 kV step-down substation, this paper proposes a new design method for the grounding system based on CYMEGRID computer-aided analysis. This method includes, first, obtaining the soil model via analyzing the on-site apparent resistivity; second, calculating the grounding resistance of different grounding system structures in the non-uniform layered soil conditions; third, designing a more economical and reasonable grounding structure; fourth, giving the potential rise, touch voltage and step voltage distribution diagram. In addition, this paper also presents a biological bacteria resistance-reduction agent which can be used to improve the soil resistivity. |
| keywords:CYMGRD grounding system two-layer soil model biological bacteria resistance-reduction agent |
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