Resistance to earth of substation earth electrodes in uniform and two-layer soils

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1997 English Publisher:Springer Science and Business Media LLCJournal:Electrical Engineering, volume 80, pages 337-342 (issn: 0948-7921, eissn: 1432-0487,

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Authors: J. Nahman; V. Djordjević;

doi: 10.1007/bf01370970

Resistance to earth of substation earth electrodes in uniform and two-layer soils

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Abstract

The resistance to earth of square and rectangular grid and combined grid-multiple rods earth electrodes buried in uniform and two-layer soils has been analyzed for a wide set of electrodes and soil parameters. Novel approximate expressions for earth resistance are deduced based upon the data obtained by exact computer modelling. These expressions and a set of diagrams provided can be used in the preliminary design stage of substations earthing systems for assessing the effects of various earthing system and soil parameters.

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University of Belgrade
Serbia

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