Title :
Simulation of grounding resistance with 70 by 70 feet grid
Author :
Salam, M.A. ; Ang, S.P. ; Aj, C. ; Goh
Author_Institution :
Inst. Teknol. Brunei, Gadong, Brunei
Abstract :
In this paper, the soil resistivity is measured using F. Wenner four-pole equal method near electrical and mechanical engineering (EME) academic building of the Institute Technology Brunei (ITB). The measured soil resistivities are used in the CYME GRD software to calculate the soil resistivities. After simulation, the rms errors between the measured and calculated resistivities are found to be 1.14% and 1.55% respectively. The grounding resistance is measured of the existing earthing system in different conditions near testing site. The lowest measured grounding resistances with and without salt (NaCl) are found to be 2.61Ω and 2.89Ω respectively. The CYME GRD software is again used to find the simulation results of 70 by 70 feet grid with four equal meshes. The simulation results of grounding resistance for different soil resistivities are found to be 1.01Ω and 0.38Ω respectively.
Keywords :
earthing; electrical resistivity; power grids; power system simulation; soil; CYME GRD software; EME; F. Wenner four-pole equal method; ITB; Institute Technology Brunei; earthing system; electrical and mechanical engineering; grounding resistance simulation; resistance 0.38 ohm; resistance 1.01 ohm; resistance 2.61 ohm; resistance 2.89 ohm; soil resistivity; Conductivity; Electric potential; Electrical resistance measurement; Grounding; Resistance; Soil; Soil measurements; Soil resistivity; ground potential rise; grounding resistance; surface and touch potentials;
Conference_Titel :
Universities Power Engineering Conference (UPEC), 2012 47th International
Conference_Location :
London
Print_ISBN :
978-1-4673-2854-8
Electronic_ISBN :
978-1-4673-2855-5
DOI :
10.1109/UPEC.2012.6398669
