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

fYear

2012

fDate

4-7 Sept. 2012

Firstpage

1

Lastpage

5

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/UPEC.2012.6398669

Filename

6398669