Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse

This report describes the air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self�sustaining discharge. In electrical power system, high voltage...

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Main Author:	Rosdi, Hairierosniza
Format:	Thesis
Language:	English English English
Published:	2014
Subjects:	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers
Online Access:	http://eprints.uthm.edu.my/1474/1/24p%20HAIRIEROSNIZA%20ROSDI.pdf http://eprints.uthm.edu.my/1474/2/HAIRIEROSNIZA%20ROSDI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1474/3/HAIRIEROSNIZA%20ROSDI%20WATERMARK.pdf
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spelling	my-uthm-ep.14742021-10-03T07:28:14Z Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse 2014-07 Rosdi, Hairierosniza TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers This report describes the air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self�sustaining discharge. In electrical power system, high voltage power equipments are mainly subjected with spark over voltage. This over voltage which may causes by the lightning strokes, switching action and so on. In this project, two different electrodes (plane-plane and sphere gap) are used to study the air breakdown characteristics. This two electrodes are tested by using different gap start with 0.5 cm, 1.0 cm until 2.5 cm. Refer to British Standard BS EN 60060 that explained detail about the general definitions and test requirements for high voltage test techniques to construct in this project. In addition, TERCO lightning impulse circuit are use to obtain the lightning impulse waveform. To estimate U50 during the experimental, up and down method are used with the value of n ≥ 20. Finite element method magnetic software (FEMM) is use to shows the potential higher electric field occurs around the electrodes. Vector and contour around the electrodes also can be viewed. From this project can conclude that electric field distribution between two conductors (or electrodes) depends on applied voltage (U50), gap between electrodes, types and surface of electrodes. In the end of this project, the relationship between voltage (U50) and gap, electric field (\|Emax\|) and gap, field utilization factor (η) and gap, U50 and field utilization factor (η) and electric field (\|Emax\|) and field utilization factor (η) have been constructed with help of graph. 2014-07 Thesis http://eprints.uthm.edu.my/1474/ http://eprints.uthm.edu.my/1474/1/24p%20HAIRIEROSNIZA%20ROSDI.pdf text en public http://eprints.uthm.edu.my/1474/2/HAIRIEROSNIZA%20ROSDI%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/1474/3/HAIRIEROSNIZA%20ROSDI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers
spellingShingle	TK2000-2891 Dynamoelectric machinery and auxiliaries Including generators, motors, transformers Rosdi, Hairierosniza Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
description	This report describes the air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self�sustaining discharge. In electrical power system, high voltage power equipments are mainly subjected with spark over voltage. This over voltage which may causes by the lightning strokes, switching action and so on. In this project, two different electrodes (plane-plane and sphere gap) are used to study the air breakdown characteristics. This two electrodes are tested by using different gap start with 0.5 cm, 1.0 cm until 2.5 cm. Refer to British Standard BS EN 60060 that explained detail about the general definitions and test requirements for high voltage test techniques to construct in this project. In addition, TERCO lightning impulse circuit are use to obtain the lightning impulse waveform. To estimate U50 during the experimental, up and down method are used with the value of n ≥ 20. Finite element method magnetic software (FEMM) is use to shows the potential higher electric field occurs around the electrodes. Vector and contour around the electrodes also can be viewed. From this project can conclude that electric field distribution between two conductors (or electrodes) depends on applied voltage (U50), gap between electrodes, types and surface of electrodes. In the end of this project, the relationship between voltage (U50) and gap, electric field (\|Emax\|) and gap, field utilization factor (η) and gap, U50 and field utilization factor (η) and electric field (\|Emax\|) and field utilization factor (η) have been constructed with help of graph.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Rosdi, Hairierosniza
author_facet	Rosdi, Hairierosniza
author_sort	Rosdi, Hairierosniza
title	Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
title_short	Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
title_full	Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
title_fullStr	Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
title_full_unstemmed	Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
title_sort	air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2014
url	http://eprints.uthm.edu.my/1474/1/24p%20HAIRIEROSNIZA%20ROSDI.pdf http://eprints.uthm.edu.my/1474/2/HAIRIEROSNIZA%20ROSDI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1474/3/HAIRIEROSNIZA%20ROSDI%20WATERMARK.pdf
_version_	1747830798119075840

Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse

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