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March 1, 1956Electrical Engineering

Efficiency of grounding grids with nonuniform soil

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Authors

JZJ. ZaborszkyUniversity of Washington

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Implication

Theoretical analysis reveals misleading ground resistance estimates in electrical grounding grids, indicating the necessity of accounting for nonuniform soil.

Key Points

  • To assess the accuracy and validity of assuming uniform soil resistivity when calculating the ground resistance of electrical grounding grids.
  • Evaluated conventional mathematical models that derive ground resistance from grid geometry and soil resistivity parameters.
  • Analyzed the practical and computational limitations of modeling nonuniform soil resistivity distributions in grounding design.
  • Identified that uniform soil resistivity assumptions, while computationally convenient, can produce inaccurate and misleading ground resistance determinations.
  • Determined that spatial variations in soil resistivity significantly alter grid performance depending on specific ground conditions.

Cite This Study

J. Zaborszky (1956) studied this question.

synapsesocial.com/papers/6a96c697672df19136a6d510https://doi.org/10.1109/ee.1956.6442491
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Also Consider

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