What does this research mean for the field?

A rectangular unequally spaced earthing grid (U-EG) design provides superior safety performance in non-homogenous soil compared to equally spaced designs and other grid shapes by minimizing ground potential rise, touch voltage, and step voltage. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate various earthing grid geometries and wire spacing methods in a two-layer soil model to identify the configuration that minimizes critical safety parameters.

August 23, 2026International Journal of Emerging Electric Power Systems

Performance analysis of earthing system with different grid configurations in non-homogenous soil

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Authors

KSKaushal Pratap SengarITM University

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Implication

Comparative simulation study demonstrates superior safety performance of unequal rectangular earthing grids in two-layer soil, indicating optimal grounding designs for substations.

Key Points

To evaluate various earthing grid geometries and wire spacing methods in a two-layer soil model to identify the configuration that minimizes critical safety parameters.
Analyzed four earthing grid configurations (square, rectangular, T-shape, and L-shape) across an equal substation coverage area embedded in a two-layer non-homogeneous soil structure.
Applied IEEE Standard 80-2000 and variable spacing techniques to compare equally spaced (E-EG) and unequally spaced (U-EG) grid designs with peripheral vertical rods.
Evaluated the influence of grid burial depth, soil layer resistivity variations, and grid geometry on grounding resistance, ground potential rise (GPR), touch voltage, and step voltage.
Unequally spaced earthing grid (U-EG) designs consistently achieved lower values for key electrical safety parameters compared to equally spaced (E-EG) configurations.
The rectangular U-EG design delivered the most stable and optimal performance across GPR, touch voltage, and step voltage under varying two-layer soil resistivity conditions.

Cite This Study

Kaushal Pratap Sengar (2026) studied this question.

synapsesocial.com/papers/6a8aadd57677a34114446387 https://doi.org/10.1515/ijeeps-2026-0214

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Implication

Comparative simulation study demonstrates superior safety performance of unequal rectangular earthing grids in two-layer soil, indicating optimal grounding designs for substations.

Performance analysis of earthing system with different grid configurations in non-homogenous soil

Discussion

Member takes

Implication

Key Points

Cite This Study

Performance analysis of earthing system with different grid configurations in non-homogenous soil

Discussion

Member takes

Implication

Key Points

Cite This Study

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