Sensitivity study on influencing parameters of transformer thermal model with directed oil flow

The thermal design of a power transformer has to keep the temperature within limits according to international agreement standards. Two of the limits are a maximum temperature rise and a maximum oil temperature. The purpose of this study was to study the temperature distributions and oil veloci...

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Main Author:	Nik Supian, Nik Mohd Azri
Format:	Thesis
Language:	English English English
Published:	2013
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.uthm.edu.my/6709/1/24p%20NIK%20MOHD%20AZRI%20NIK%20SUPIAN.pdf http://eprints.uthm.edu.my/6709/2/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6709/3/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%20WATERMARK.pdf
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spelling	my-uthm-ep.67092022-03-14T02:13:47Z Sensitivity study on influencing parameters of transformer thermal model with directed oil flow 2013-07 Nik Supian, Nik Mohd Azri TK Electrical engineering. Electronics Nuclear engineering TK2000-2891 Dynamoelectric machinery and auxiliaries. Including generators, motors, transformers The thermal design of a power transformer has to keep the temperature within limits according to international agreement standards. Two of the limits are a maximum temperature rise and a maximum oil temperature. The purpose of this study was to study the temperature distributions and oil velocity inside coil of the power transformer and to model and develop a program using MATLAB that can modulate the suitable parameter that not exceeds maximum temperature rise in disk coil transformer. Two methods have been used to study the velocity and temperature parameters affecting the oil flow through the transformer. The first approach focused on equation derived from previous worked about oil flow and temperature distribution. The second approach was to handle the problem as a global optimization problem solved by numerical methods. The optimization was done using predictions from a program used for velocity and temperature calculation. The numerical method result was successful; on all the designs tested it gave a lower temperature rise value according to international agreement standards. Test the program by using different value in the parameter have been tested on sensitivity of study. The study has shown that a geometrical detail approach provided for better design solutions in reasonable time and therefore has shown its potential for practical use. Both the methods could be combined and used for further investigation. 2013-07 Thesis http://eprints.uthm.edu.my/6709/ http://eprints.uthm.edu.my/6709/1/24p%20NIK%20MOHD%20AZRI%20NIK%20SUPIAN.pdf text en public http://eprints.uthm.edu.my/6709/2/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/6709/3/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%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	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 Nik Supian, Nik Mohd Azri Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
description	The thermal design of a power transformer has to keep the temperature within limits according to international agreement standards. Two of the limits are a maximum temperature rise and a maximum oil temperature. The purpose of this study was to study the temperature distributions and oil velocity inside coil of the power transformer and to model and develop a program using MATLAB that can modulate the suitable parameter that not exceeds maximum temperature rise in disk coil transformer. Two methods have been used to study the velocity and temperature parameters affecting the oil flow through the transformer. The first approach focused on equation derived from previous worked about oil flow and temperature distribution. The second approach was to handle the problem as a global optimization problem solved by numerical methods. The optimization was done using predictions from a program used for velocity and temperature calculation. The numerical method result was successful; on all the designs tested it gave a lower temperature rise value according to international agreement standards. Test the program by using different value in the parameter have been tested on sensitivity of study. The study has shown that a geometrical detail approach provided for better design solutions in reasonable time and therefore has shown its potential for practical use. Both the methods could be combined and used for further investigation.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Nik Supian, Nik Mohd Azri
author_facet	Nik Supian, Nik Mohd Azri
author_sort	Nik Supian, Nik Mohd Azri
title	Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
title_short	Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
title_full	Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
title_fullStr	Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
title_full_unstemmed	Sensitivity study on influencing parameters of transformer thermal model with directed oil flow
title_sort	sensitivity study on influencing parameters of transformer thermal model with directed oil flow
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Elektrik dan Elektronik
publishDate	2013
url	http://eprints.uthm.edu.my/6709/1/24p%20NIK%20MOHD%20AZRI%20NIK%20SUPIAN.pdf http://eprints.uthm.edu.my/6709/2/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/6709/3/NIK%20MOHD%20AZRI%20NIK%20SUPIAN%20WATERMARK.pdf
_version_	1747831086038122496

Sensitivity study on influencing parameters of transformer thermal model with directed oil flow

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