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Home  >  Volume 22 (2012)

Electrical Earthing: Overcoming Grid Resistance in Restricted and Highly Resistive Soil Environments by Attah J. E., 2Ojo K. O. And 3Ubeku E. U.
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In this paper, optimization software was used in the design of an earthing system for a substation located in a restrictive and highly resistive soil area. The software could not obtain the required grid resistance and to overcome this, the grid resistance were further reduced through the contributing part of the earth rods using soil enhancing materials. The final results obtained met the touch and step voltage criteria as well as the required grid resistance.

Keywords: Optimization, substation, grid resistance, soil, enhancement.