Investigation of increasing fault Gas in excitation transformers

This study is to carry out investigation on increasing fault gas in oil insulation in three similar excitation transformers in Tanjung Bin Power Plant; Transformer A, Transformer B, and Transformer C. The research covers the transformer oil sample collection, and the experiment of Dissolved Gas A...

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Main Author:	Che Muhamad Khabali, Mohd Khazani
Format:	Thesis
Language:	English English
Published:	2014
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.uthm.edu.my/1555/1/24p%20MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI.pdf http://eprints.uthm.edu.my/1555/2/MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI%20WATERMARK.pdf
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id	my-uthm-ep.1555
record_format	uketd_dc
spelling	my-uthm-ep.15552021-10-03T07:58:46Z Investigation of increasing fault Gas in excitation transformers 2014-12 Che Muhamad Khabali, Mohd Khazani TK Electrical engineering. Electronics Nuclear engineering TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers This study is to carry out investigation on increasing fault gas in oil insulation in three similar excitation transformers in Tanjung Bin Power Plant; Transformer A, Transformer B, and Transformer C. The research covers the transformer oil sample collection, and the experiment of Dissolved Gas Analysis (DGA) in laboratory. Then, the DGA results as raw data are evaluated using two methods which are Duval Triangle and Rogers Ratio in order to interpret and estimate the possible internal fault that may present in all transformers. The research is also included with three mitigation procedures and one verification test on selected transformer respectively. First procedure study is replacing Transformer A with spare. Second method is oil insulation degasification from Transformer B. Third procedure is continued with high frequency of DGA monitoring of Transformer C. The results from all case studies are again interpreted and checked with Duval Triangle and Roger’s Ratio for before and after outcome comparison. In addition to, the investigation is widened with electrical diagnostics tests which are carried out on Transformer A in order to verify the root cause of internal fault. The decision of serviceability of all excitation transformers are successfully made by having a Transformer Health Index (THI) using the condition factors as mentioned above. It is concluded that, all excitation transformers are good to be keep in service with several recommendations. 2014-12 Thesis http://eprints.uthm.edu.my/1555/ http://eprints.uthm.edu.my/1555/1/24p%20MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI.pdf text en public http://eprints.uthm.edu.my/1555/2/MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Malaysia Fakulti Kejuruteraan Elektrik dan Elektronik
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English
topic	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering TK Electrical engineering Electronics Nuclear engineering Che Muhamad Khabali, Mohd Khazani Investigation of increasing fault Gas in excitation transformers
description	This study is to carry out investigation on increasing fault gas in oil insulation in three similar excitation transformers in Tanjung Bin Power Plant; Transformer A, Transformer B, and Transformer C. The research covers the transformer oil sample collection, and the experiment of Dissolved Gas Analysis (DGA) in laboratory. Then, the DGA results as raw data are evaluated using two methods which are Duval Triangle and Rogers Ratio in order to interpret and estimate the possible internal fault that may present in all transformers. The research is also included with three mitigation procedures and one verification test on selected transformer respectively. First procedure study is replacing Transformer A with spare. Second method is oil insulation degasification from Transformer B. Third procedure is continued with high frequency of DGA monitoring of Transformer C. The results from all case studies are again interpreted and checked with Duval Triangle and Roger’s Ratio for before and after outcome comparison. In addition to, the investigation is widened with electrical diagnostics tests which are carried out on Transformer A in order to verify the root cause of internal fault. The decision of serviceability of all excitation transformers are successfully made by having a Transformer Health Index (THI) using the condition factors as mentioned above. It is concluded that, all excitation transformers are good to be keep in service with several recommendations.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Che Muhamad Khabali, Mohd Khazani
author_facet	Che Muhamad Khabali, Mohd Khazani
author_sort	Che Muhamad Khabali, Mohd Khazani
title	Investigation of increasing fault Gas in excitation transformers
title_short	Investigation of increasing fault Gas in excitation transformers
title_full	Investigation of increasing fault Gas in excitation transformers
title_fullStr	Investigation of increasing fault Gas in excitation transformers
title_full_unstemmed	Investigation of increasing fault Gas in excitation transformers
title_sort	investigation of increasing fault gas in excitation transformers
granting_institution	Universiti Tun Hussein Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2014
url	http://eprints.uthm.edu.my/1555/1/24p%20MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI.pdf http://eprints.uthm.edu.my/1555/2/MOHD%20KHAZANI%20CHE%20MUHAMAD%20KHABALI%20WATERMARK.pdf
_version_	1747830815277973504

Investigation of increasing fault Gas in excitation transformers

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