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  1. Home
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  5. Investigation of Spherical Electrode Grounding System under High Impulse Conditions with Different Polarities
 
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Investigation of Spherical Electrode Grounding System under High Impulse Conditions with Different Polarities

Journal
Journal of Physics: Conference Series
ISSN
17426588
Date Issued
2021-06-11
Author(s)
Haziah Abdul Hamid
Universiti Malaysia Perlis
Mohd Rafi Adzman
Universiti Malaysia Perlis
Noor Hasnizam Hanafi
Universiti Malaysia Perlis
Nor N.M.
Grounding Services Sdn Bhd, 90B Jalan Burhanuddin Helmi, Taman Tun Dr Ismail, Kuala Lumpur, 60000, Malaysia
Abdullah S.
Grounding Services Sdn Bhd, 90B Jalan Burhanuddin Helmi, Taman Tun Dr Ismail, Kuala Lumpur, 60000, Malaysia
Reffin M.S.
Grounding Services Sdn Bhd, 90B Jalan Burhanuddin Helmi, Taman Tun Dr Ismail, Kuala Lumpur, 60000, Malaysia
Etobi N.A.
Grounding Services Sdn Bhd, 90B Jalan Burhanuddin Helmi, Taman Tun Dr Ismail, Kuala Lumpur, 60000, Malaysia
Abd-Rahman R.
Faculty Electrical and Electronic Engineering, University Tun Hussein Onn Malaysia (UTHM), Johor, 86400, Malaysia
DOI
10.1088/1742-6596/1878/1/012018
Abstract
There have been many studies in the pasts, which showed that under high impulse conditions, soil ionization process around the electrode would occur, which results in lower resistance and lower transient voltage on the electrode. Several factors have also been found to affect the ionization process in soil such as; soil types and its grain sizes, moisture contents in the soil, earth electrode configurations, impulse polarity, the location of the injection point, the shape of response time, etc. In this paper, spherical electrodes grounding is used to study the ionization process in the grounding system under different impulse polarity of the current. The experiment was done by field measurement using a commercially available impulse current generator. It was found that lower earth resistance was seen to decrease with increasing current magnitudes for both impulse polarities. In addition, it was found that at low impulse current with negative polarity has a higher resistance than that of positive polarity. This paper is, therefore, to investigate towards improvement on grounding electrode's design, which would consider soil ionization process
Subjects
  • grounding electrodes ...

  • impulse resistance

  • Ionization process

  • lightning impulse

File(s)
Investigation of Spherical Electrode Grounding.pdf (1.34 MB)
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Acquisition Date
Nov 19, 2024
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Acquisition Date
Nov 19, 2024
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