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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
http://eprints.utm.my/id/eprint/48017/
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spelling my.utm.480172017-07-25T01:10:02Z http://eprints.utm.my/id/eprint/48017/ Using diagnosis gas analysis as a tool for power transformer maintenance 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 NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/48017/25/SanuriIshakMFKE2014.pdf Ishak, Sanuri (2014) Using diagnosis gas analysis as a tool for power transformer maintenance. Masters thesis, Universiti Teknologi Malaysia, Faculty of Electrical Engineering.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
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
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
publishDate 2014
url http://eprints.utm.my/id/eprint/48017/25/SanuriIshakMFKE2014.pdf
http://eprints.utm.my/id/eprint/48017/
_version_ 1643652434422136832
score 13.211869

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