Circunstances affecting the protection against electrode potential rise (EPR)
DOI:
https://doi.org/10.24084/repqj06.432Keywords:
Earthing grid, substation, earthing resistance, simulationAbstract
In this paper the earthing resistance of substations with different earth electrode and soil structures is investigated by simulation studies with the use of CDEGS (Current Distribution, Electromagnetic Fields, Grounding and Soil Structure Analysis) software code. The paper presents the effect of grid geometry, soil characteristics, the effectiveness of the vertical earth rods and the conductor diameter.