Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard

Power Transformer insulation system is part of protection scheme that acquired by the transmission and distribution transformer to ensure the reliability and safety operation of the power transformer. Partial discharge (PD) is one of the event that occurs within insulation material located adjacent...

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Main Author:	Md. Kahmi, Mohd. Izwan
Format:	Thesis
Language:	English
Published:	2018
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/79384/1/MohdIzwanMdKahmiMFKE2018.pdf
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id	my-utm-ep.79384
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spelling	my-utm-ep.793842018-10-14T08:45:09Z Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard 2018 Md. Kahmi, Mohd. Izwan TK Electrical engineering. Electronics Nuclear engineering Power Transformer insulation system is part of protection scheme that acquired by the transmission and distribution transformer to ensure the reliability and safety operation of the power transformer. Partial discharge (PD) is one of the event that occurs within insulation material located adjacent to the conductor that needs to be taken care of during condition-based assessment monitoring. Temperature is among factors that are known to severely degrade the dielectric properties of transformer insulation. Power transformer cannot operate without energy losses, which lead to rises in temperature. Failing to identify the root cause results in premature aging and ultimately to failure of the equipment. This report discusses about the characteristic of PD with influence of thermal stress. The insulation material characteristics was tested and measured through PD activities using CIGRE Method II test to study the electrical performance of samples. Applied voltage was set at 3 kVrms for half an hour ageing time and PD characteristics were investigated using PD Detector as per IEC60270 standard. The test was conducted inside Thermal Tank to imposed the sample with real-time temperature setting along with high voltage application. The result revealed that PDIV (Partial Discharge Inception Voltage) value decreased because of the effect of high temperature to the sample and PD numbers and magnitude increased also contributed by the effect of high temperature. 2018 Thesis http://eprints.utm.my/id/eprint/79384/ http://eprints.utm.my/id/eprint/79384/1/MohdIzwanMdKahmiMFKE2018.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 Md. Kahmi, Mohd. Izwan Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
description	Power Transformer insulation system is part of protection scheme that acquired by the transmission and distribution transformer to ensure the reliability and safety operation of the power transformer. Partial discharge (PD) is one of the event that occurs within insulation material located adjacent to the conductor that needs to be taken care of during condition-based assessment monitoring. Temperature is among factors that are known to severely degrade the dielectric properties of transformer insulation. Power transformer cannot operate without energy losses, which lead to rises in temperature. Failing to identify the root cause results in premature aging and ultimately to failure of the equipment. This report discusses about the characteristic of PD with influence of thermal stress. The insulation material characteristics was tested and measured through PD activities using CIGRE Method II test to study the electrical performance of samples. Applied voltage was set at 3 kVrms for half an hour ageing time and PD characteristics were investigated using PD Detector as per IEC60270 standard. The test was conducted inside Thermal Tank to imposed the sample with real-time temperature setting along with high voltage application. The result revealed that PDIV (Partial Discharge Inception Voltage) value decreased because of the effect of high temperature to the sample and PD numbers and magnitude increased also contributed by the effect of high temperature.
format	Thesis
qualification_level	Master's degree
author	Md. Kahmi, Mohd. Izwan
author_facet	Md. Kahmi, Mohd. Izwan
author_sort	Md. Kahmi, Mohd. Izwan
title	Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
title_short	Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
title_full	Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
title_fullStr	Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
title_full_unstemmed	Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
title_sort	effect of thermal stress on partial discharge characteristics of oil impregnated pressboard
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2018
url	http://eprints.utm.my/id/eprint/79384/1/MohdIzwanMdKahmiMFKE2018.pdf
_version_	1747818215443005440

Effect of thermal stress on partial discharge characteristics of oil impregnated pressboard

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