Enhanced earthing performance by improved design and grounding material properties

An enhance ground electrode (E.G.E.) is a portable grounding system that acts as an additional grounding system, designed for zero potential reference points. The E.G.E could eliminate the increasing of resistance in grounding conductor as it placed next to the electrical equipment, hence the ground...

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Main Author:	Mohd Hasni, Nur Alyaa
Format:	Thesis
Language:	English English English
Published:	2018
Subjects:	TK3001-3521 Distribution or transmission of electric power
Online Access:	http://eprints.uthm.edu.my/251/1/24p%20NUR%20ALYAA%20BINTI%20MOHD%20HASNI.pdf http://eprints.uthm.edu.my/251/2/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/251/3/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20WATERMARK.pdf
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spelling	my-uthm-ep.2512021-07-14T03:32:41Z Enhanced earthing performance by improved design and grounding material properties 2018-07 Mohd Hasni, Nur Alyaa TK3001-3521 Distribution or transmission of electric power An enhance ground electrode (E.G.E.) is a portable grounding system that acts as an additional grounding system, designed for zero potential reference points. The E.G.E could eliminate the increasing of resistance in grounding conductor as it placed next to the electrical equipment, hence the grounding conductor is shortened. A prototype of E.G.E was developed in size measuring 19.5 em x 19.5 em x 11.5 em and filled with selected grounding material, attached with a grounding electrode. Meanwhile, the grounding electrode was reviewed in terms of thermal conductivity electrode material, variation of soil resistivity with the electrode's depth, and effect on the number of grounding rods to ground resistance. The design ofthe electrode was selected based on heat dispersion that was simulated using the Finite Element Method (FEM) package. The four selected grounding materials chosen based on its resistivity value and physical composition which is; kaolin, sand, bauxite and coal. These materials were investigated using the morphology test, element composition test and correlation between water content and material resistivity test. Fabricated E.G.E was tested under lightning flashover conditions in a HV laboratory using an impulse test generator in order to validate its electrical performance and prolog life expectancy. Data obtained from laboratory tests indicated that bauxite is the best material for the proposed E.G.E system, compared to other materials by offering the lowest different percentage breakdown voltage comparable to native earth, which is around 1.27%. Besides that, bauxite gets 35% strikes during dry condition and 38% strikes during wet condition among three others material. It is hope this E.G.E sustaining a good performance as a grounding system. 2018-07 Thesis http://eprints.uthm.edu.my/251/ http://eprints.uthm.edu.my/251/1/24p%20NUR%20ALYAA%20BINTI%20MOHD%20HASNI.pdf text en public http://eprints.uthm.edu.my/251/2/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/251/3/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Electrical and Electronic Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK3001-3521 Distribution or transmission of electric power
spellingShingle	TK3001-3521 Distribution or transmission of electric power Mohd Hasni, Nur Alyaa Enhanced earthing performance by improved design and grounding material properties
description	An enhance ground electrode (E.G.E.) is a portable grounding system that acts as an additional grounding system, designed for zero potential reference points. The E.G.E could eliminate the increasing of resistance in grounding conductor as it placed next to the electrical equipment, hence the grounding conductor is shortened. A prototype of E.G.E was developed in size measuring 19.5 em x 19.5 em x 11.5 em and filled with selected grounding material, attached with a grounding electrode. Meanwhile, the grounding electrode was reviewed in terms of thermal conductivity electrode material, variation of soil resistivity with the electrode's depth, and effect on the number of grounding rods to ground resistance. The design ofthe electrode was selected based on heat dispersion that was simulated using the Finite Element Method (FEM) package. The four selected grounding materials chosen based on its resistivity value and physical composition which is; kaolin, sand, bauxite and coal. These materials were investigated using the morphology test, element composition test and correlation between water content and material resistivity test. Fabricated E.G.E was tested under lightning flashover conditions in a HV laboratory using an impulse test generator in order to validate its electrical performance and prolog life expectancy. Data obtained from laboratory tests indicated that bauxite is the best material for the proposed E.G.E system, compared to other materials by offering the lowest different percentage breakdown voltage comparable to native earth, which is around 1.27%. Besides that, bauxite gets 35% strikes during dry condition and 38% strikes during wet condition among three others material. It is hope this E.G.E sustaining a good performance as a grounding system.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mohd Hasni, Nur Alyaa
author_facet	Mohd Hasni, Nur Alyaa
author_sort	Mohd Hasni, Nur Alyaa
title	Enhanced earthing performance by improved design and grounding material properties
title_short	Enhanced earthing performance by improved design and grounding material properties
title_full	Enhanced earthing performance by improved design and grounding material properties
title_fullStr	Enhanced earthing performance by improved design and grounding material properties
title_full_unstemmed	Enhanced earthing performance by improved design and grounding material properties
title_sort	enhanced earthing performance by improved design and grounding material properties
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Electrical and Electronic Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/251/1/24p%20NUR%20ALYAA%20BINTI%20MOHD%20HASNI.pdf http://eprints.uthm.edu.my/251/2/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/251/3/NUR%20ALYAA%20BINTI%20MOHD%20HASNI%20WATERMARK.pdf
_version_	1747830564892704768

Enhanced earthing performance by improved design and grounding material properties

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