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Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations

1
Faculty of Engineering, Multimedia University, Jalan Multimedia, Cyberjaya 63100, Malaysia
2
Faculty of Electrical Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Melaka 76100, Malaysia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(14), 3538; https://doi.org/10.3390/en13143538
Received: 27 June 2020 / Revised: 6 July 2020 / Accepted: 7 July 2020 / Published: 9 July 2020
(This article belongs to the Section A: Electrical Engineering)
In a recently published work, the characteristics of a new grounding device with spike rods (GDSR) with various arrangements of ground electrodes under high magnitude impulse currents (up to 16 kA), was investigated. In an earlier study, the ground electrodes were installed in low resistivity test media, with resistance at steady state (Rdc) values ranging from 11 Ω to 75 Ω. In practice, various soil resistivity, ranging from a few Ohm-metres to several kiloOhm-metres, have been reported in the standards. It is, therefore, necessary to investigate the characteristics of GDSR with different arrangements of ground electrodes in various soil resistivities under high impulse currents. In this present paper, six configurations of ground electrodes are used, installed at three different sites and subjected to high impulse conditions. Impulse test data of all the grounding systems are analyzed. The Finite Element Method (FEM) is used to compute the electric field values of the ground electrodes achieved. It is found that the highest electric field occurs in the presence of electrodes with the highest Rdc, soil resistivity and current magnitudes. This new data would be useful in bolstering the performance of GDSR in various types of soil resistivities, electrode arrangements and current magnitudes, which may allow for optimum design of grounding systems. View Full-Text
Keywords: earthing systems; electrode geometry; fast-impulses; high-magnitude currents earthing systems; electrode geometry; fast-impulses; high-magnitude currents
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MDPI and ACS Style

Abdul Ali, A.W.; Ahmad, N.N.; Mohamad Nor, N.; Idris, N.F.; Hanaffi, F. Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations. Energies 2020, 13, 3538. https://doi.org/10.3390/en13143538

AMA Style

Abdul Ali AW, Ahmad NN, Mohamad Nor N, Idris NF, Hanaffi F. Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations. Energies. 2020; 13(14):3538. https://doi.org/10.3390/en13143538

Chicago/Turabian Style

Abdul Ali, Abdul W., Nurul N. Ahmad, Normiza Mohamad Nor, Nur F. Idris, and Farhan Hanaffi. 2020. "Investigations on the Performance of Grounding Device with Spike Rods (GDSR) with the Effects of Soil Resistivity and Configurations" Energies 13, no. 14: 3538. https://doi.org/10.3390/en13143538

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