Induced current distribution in 3D soil model as lightning impulse discharge strike earth surface

Fajingbesi, Fawwaz Eniola and Yusoff, Siti Hajar and Midi, Nur Shahida and Khan, Sheroz and Elsheikh, Elsheikh M. A. and Azman, Amelia Wong (2020) Induced current distribution in 3D soil model as lightning impulse discharge strike earth surface. In: 9th International Conference on Power and Energy Systems (ICPES 2019), 10th-12th December 2019, Perth, Australia.

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Abstract

Discharge current distribution generated as a lightning strike traverse from the atmosphere into a soil surface and below with varying conductivity were investigated using a laboratory-size electrode configuration system consisting of a point discharge electrode and nine under-soil grounding electrodes. Discharge emission and the electric potential of the soil were with significant change upon slight variation in soil conductivity across the surface and along with an increase in depth. Non-linear degradation phenomena in the soil conductivity also occur after a subsequent discharge of lightning strike indicating a breakdown of soil properties. The results of a numerical model in COMSOL Multiphysics AC/DC module further shed a graphical illustration of the current pathway validating the experimental data. © 2019 IEEE.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	7329/82330
Uncontrolled Keywords:	Soil Conductivity, Lightning Discharge, Discharge Current, Ionization parameters
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	dr siti hajar yusoff
Date Deposited:	20 Aug 2020 09:41
Last Modified:	20 Aug 2020 09:41
URI:	http://irep.iium.edu.my/id/eprint/82330

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