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Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement

TK2792 .N54 2015

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Main Author: Nik Nazrin Nik Azhari
Format: text::Final Year Project
Language:English US
Published: 2024
Subjects:
Electric transformer
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spelling my.uniten.dspace-314812024-03-10T02:05:24Z Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement Nik Nazrin Nik Azhari Electric transformer TK2792 .N54 2015 Studies on power transformers have proven that the number one cause of power transformers breakdown is the On Load Tap Changer (OLTC). Faulty OLTC usually due to the insulation degradation and contact failure inside it. Besides that, the OLTC performance is influence by contact wear and this type of fault has not been research thoroughly in Malaysia especially by the main energy provider, Tenaga Nasional Berhad (TNB). Worn contacts of OLTC will result hotspots in the OLTC tank and causing the insulation oil to degrade at a higher rate. Ultimately, this will lead to the breakdown of a complete power transformer unit. Thus, it is essential to to find a new and better ways of detecting an OLTC fault as it may lead to a more costly fault of a complete transformer. Therefore, this research work has been carried out to distinguish the difference of a good and faulty OLTC operation to provide early indication of OLTC fault. On top of that, this dissertation introduced the new way of analysis of OLTC using Dynamic Winding Resistance Measurement (DWRM) by using MATLAB software to figure out the types and locations of the faults inside of the OLTC. The analysis in this dissertation revealed that the results obtained is accurate and the software were able to detect a faulty OLTC and give out warning. Moreover, this research work was based on the real data from TNB in- service distribution power transformer. Hence, the techniques that have been applied in this dissertation were found to be useful for TNB during the OLTC condition assessment of their in-service power transformer. 2024-03-04T08:15:19Z 2024-03-04T08:15:19Z 2015 Resource Types::text::Final Year Project https://irepository.uniten.edu.my/handle/123456789/31481 en_US application/pdf
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
language English US
topic Electric transformer
spellingShingle Electric transformer
Nik Nazrin Nik Azhari
Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
description TK2792 .N54 2015
format Resource Types::text::Final Year Project
author Nik Nazrin Nik Azhari
author_facet Nik Nazrin Nik Azhari
author_sort Nik Nazrin Nik Azhari
title Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
title_short Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
title_full Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
title_fullStr Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
title_full_unstemmed Analysis of OLTC condition in distribution transformers using dynamic winding resistance measurement
title_sort analysis of oltc condition in distribution transformers using dynamic winding resistance measurement
publishDate 2024
_version_ 1806426548697300992
score 13.188404

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