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A Mathematical Method for Determining Optimal Quantity of Backfill Materials Used for Grounding Resistance Reduction

机译:确定用于减少接地电阻的回填材料的最佳数量的数学方法

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摘要

During installation of grounding system, which represents a significant part of any electrical power system, various backfill materials are used for grounding resistance reduction. The general mathematical method for determining an optimal quantity of backfill materials used for grounding resistance reduction, based on the mathematical tools, 3D FEM modeling, numerical analysis of the obtained results, and the "knee" of the curve concept, as well as on the engineering analysis based on the designer's experience, is developed and offered in this paper. The proposed method has been tested by applying it to a square loop enveloped by a backfill material and buried in a 2-layer soil. The results obtained by the presented method showed a good correlation with the experimentally obtained data from literature. The proposed method can help the designers to avoid the saturation areas in order to maximize efficiency of backfill material usage.
机译:在代表任何电力系统的重要组成部分的接地系统的安装过程中,使用各种回填材料来降低接地电阻。基于数学工具,3D FEM建模,所得结果的数值分析以及曲线概念的“拐点”,基于通用工具,确定用于减少接地电阻的最佳回填材料量。本文根据设计者的经验进行了工程分析,并提供了分析方法。通过将其应用于由回填材料包围并埋在2层土壤中的方环上,对该方法进行了测试。通过提出的方法获得的结果显示与文献中的实验数据有很好的相关性。所提出的方法可以帮助设计人员避免饱和区域,从而最大程度地提高回填材料的使用效率。

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  • 来源
    《Mathematical Problems in Engineering》 |2018年第3期|4863702.1-4863702.9|共9页
  • 作者

    Trifunovic Jovan;

  • 作者单位

    Univ Belgrade, Fac Elect Engn, Bulevar Kralja Aleksandra 73, Belgrade 11000, Serbia;

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  • 正文语种 eng
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