Evaluation of transient response of different earthing configurations due to lightning impulses

L. M. Wai, M. S. Abd Rahman, A. Mohd Ariffin, N. H. Nik Ali, M. Osman, M. Z.A. Ab Kadir

Research output: Contribution to journalArticle

Abstract

Earthing system is very important in order to protect the electrical equipment as well as the human’s safety against over voltages. The main function of the earthling system is to remove unwanted excessive electrical currents caused by unusual conditions such as fault and lightning or switching over voltages by providing a low resistance path to the earth. Researchers had studied the behaviour of the earthling system to improve its performance for the past few years. There are few factors that influence the performance of the earthling system such as soil resistivity and soil ionization which need to be focused in order to improve the earthling. Thus, this paper evaluates on the factors that affect the behaviour of the earthling system based on simulation works using MATLAB and Safe Grid Software. Some analytical calculations are used to obtain the soil resistivity and resistance as well as the touch and step voltages. The simulation results were validated based on comparison with other studies on the factors that influence the earthling system performance. The results reveal that the variation of soil resistivity, the configuration of electrodes, current magnitude and frequency dependence can result in a change of transient response of the systems.

Original languageEnglish
Pages (from-to)6342-6346
Number of pages5
JournalInternational Journal of Recent Technology and Engineering
Volume8
Issue number4
DOIs
Publication statusPublished - Nov 2019

Fingerprint

Electric grounding
Lightning
Transient analysis
Soils
Electric potential
MATLAB
Ionization
Earth (planet)
Electrodes
Evaluation
Impulse
Soil

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Management of Technology and Innovation

Cite this

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abstract = "Earthing system is very important in order to protect the electrical equipment as well as the human’s safety against over voltages. The main function of the earthling system is to remove unwanted excessive electrical currents caused by unusual conditions such as fault and lightning or switching over voltages by providing a low resistance path to the earth. Researchers had studied the behaviour of the earthling system to improve its performance for the past few years. There are few factors that influence the performance of the earthling system such as soil resistivity and soil ionization which need to be focused in order to improve the earthling. Thus, this paper evaluates on the factors that affect the behaviour of the earthling system based on simulation works using MATLAB and Safe Grid Software. Some analytical calculations are used to obtain the soil resistivity and resistance as well as the touch and step voltages. The simulation results were validated based on comparison with other studies on the factors that influence the earthling system performance. The results reveal that the variation of soil resistivity, the configuration of electrodes, current magnitude and frequency dependence can result in a change of transient response of the systems.",
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Evaluation of transient response of different earthing configurations due to lightning impulses. / Wai, L. M.; Abd Rahman, M. S.; Mohd Ariffin, A.; Nik Ali, N. H.; Osman, M.; Ab Kadir, M. Z.A.

In: International Journal of Recent Technology and Engineering, Vol. 8, No. 4, 11.2019, p. 6342-6346.

Research output: Contribution to journalArticle

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AU - Ab Kadir, M. Z.A.

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