Using diagnosis gas analysis as a tool for power transformer maintenance

The importance of Diagnosis Gas Analysis (DGA) has been recognized by electrical industry nowadays as one of the tools for power transformer maintenance to monitor the performance of transformers and provide early information about the health of a transformer. The lifespan of a transformer depends o...

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Main Author:	Ishak, Sanuri
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/48017/25/SanuriIshakMFKE2014.pdf
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id	my-utm-ep.48017
record_format	uketd_dc
spelling	my-utm-ep.480172017-07-25T01:10:02Z Using diagnosis gas analysis as a tool for power transformer maintenance 2014-08 Ishak, Sanuri TK Electrical engineering. Electronics Nuclear engineering The importance of Diagnosis Gas Analysis (DGA) has been recognized by electrical industry nowadays as one of the tools for power transformer maintenance to monitor the performance of transformers and provide early information about the health of a transformer. The lifespan of a transformer depends on the condition of the transformer oil. Transformer problem causes an increase in temperature of transformer components, thereby increasing the temperature of the insulating. When the oil is exposed to heat, it will result in the formation of a number of gases dissolved in transformer oil. The purpose of this research is to investigate the relationship between dissolved gases in transformer oil and its relationship to the damages suffered by the transformer. This research used oil samples taken from a number of power transformers installed in Tenaga Nasional Berhad, an electrical utility company in Malaysia. Oil samples were sent to a laboratory for analysis. This research is aimed at finding the causes and consequently identify damages to the components by using five methods of interpretation using the DGA namely Rogers Ratio Method, Doernenburg Ratio Method, IEC Method Ratio, CIGRE Ratio Method and Duval Triangle Method Ratio Method. Three actual cases are discussed in this thesis based on the investigation and repair works on 132kV and 275kV transformers. It is found that DGA can be used to locate defects in the components of the transformer. 2014-08 Thesis http://eprints.utm.my/id/eprint/48017/ http://eprints.utm.my/id/eprint/48017/25/SanuriIshakMFKE2014.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ishak, Sanuri Using diagnosis gas analysis as a tool for power transformer maintenance
description	The importance of Diagnosis Gas Analysis (DGA) has been recognized by electrical industry nowadays as one of the tools for power transformer maintenance to monitor the performance of transformers and provide early information about the health of a transformer. The lifespan of a transformer depends on the condition of the transformer oil. Transformer problem causes an increase in temperature of transformer components, thereby increasing the temperature of the insulating. When the oil is exposed to heat, it will result in the formation of a number of gases dissolved in transformer oil. The purpose of this research is to investigate the relationship between dissolved gases in transformer oil and its relationship to the damages suffered by the transformer. This research used oil samples taken from a number of power transformers installed in Tenaga Nasional Berhad, an electrical utility company in Malaysia. Oil samples were sent to a laboratory for analysis. This research is aimed at finding the causes and consequently identify damages to the components by using five methods of interpretation using the DGA namely Rogers Ratio Method, Doernenburg Ratio Method, IEC Method Ratio, CIGRE Ratio Method and Duval Triangle Method Ratio Method. Three actual cases are discussed in this thesis based on the investigation and repair works on 132kV and 275kV transformers. It is found that DGA can be used to locate defects in the components of the transformer.
format	Thesis
qualification_level	Master's degree
author	Ishak, Sanuri
author_facet	Ishak, Sanuri
author_sort	Ishak, Sanuri
title	Using diagnosis gas analysis as a tool for power transformer maintenance
title_short	Using diagnosis gas analysis as a tool for power transformer maintenance
title_full	Using diagnosis gas analysis as a tool for power transformer maintenance
title_fullStr	Using diagnosis gas analysis as a tool for power transformer maintenance
title_full_unstemmed	Using diagnosis gas analysis as a tool for power transformer maintenance
title_sort	using diagnosis gas analysis as a tool for power transformer maintenance
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/48017/25/SanuriIshakMFKE2014.pdf
_version_	1747817287537131520

Using diagnosis gas analysis as a tool for power transformer maintenance

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