Polarization and depolarization current study in polymeric insulation containing voids

PDC testing is one of the dielectric diagnostic techniques based on time domain measurement. It is a non-destructive dielectric testing which is used to determine the conductivity of insulation. Voids are inevitable in HV insulations which can occur during manufacturing. Numerous studies have been c...

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Main Author:	Mohd. Yusof, Nur Farhana
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/78370/1/NurFarhanaMohdMFKE2015.pdf
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id	my-utm-ep.78370
record_format	uketd_dc
spelling	my-utm-ep.783702018-08-26T04:56:08Z Polarization and depolarization current study in polymeric insulation containing voids 2015-12 Mohd. Yusof, Nur Farhana TK Electrical engineering. Electronics Nuclear engineering PDC testing is one of the dielectric diagnostic techniques based on time domain measurement. It is a non-destructive dielectric testing which is used to determine the conductivity of insulation. Voids are inevitable in HV insulations which can occur during manufacturing. Numerous studies have been carried out to assess the condition of solid and liquid insulations using PDC. However, such studies on voids have been found lacking. This project presents PDC studies on insulations containing voids. PDC measurements were conducted on new Silicone Rubbers (SiR) samples containing various sizes of voids as well as multiple number of voids. DC conductivity of the samples were calculated by using PDC Analyzer via LabVIEW program and the PDC curves were plotted by using MATLAB. Result from this study showed that different sizes and numbers of void affected the conductivity of SiR samples. Increasing sizes of void as well as increasing number of voids resulted in increase in polarization and depolarization currents as well as the conductivity of the SiR samples. Thus study suggests that PDC measurement can be a tool in analysing and detecting voids in solid insulation. 2015-12 Thesis http://eprints.utm.my/id/eprint/78370/ http://eprints.utm.my/id/eprint/78370/1/NurFarhanaMohdMFKE2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:100943 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 Mohd. Yusof, Nur Farhana Polarization and depolarization current study in polymeric insulation containing voids
description	PDC testing is one of the dielectric diagnostic techniques based on time domain measurement. It is a non-destructive dielectric testing which is used to determine the conductivity of insulation. Voids are inevitable in HV insulations which can occur during manufacturing. Numerous studies have been carried out to assess the condition of solid and liquid insulations using PDC. However, such studies on voids have been found lacking. This project presents PDC studies on insulations containing voids. PDC measurements were conducted on new Silicone Rubbers (SiR) samples containing various sizes of voids as well as multiple number of voids. DC conductivity of the samples were calculated by using PDC Analyzer via LabVIEW program and the PDC curves were plotted by using MATLAB. Result from this study showed that different sizes and numbers of void affected the conductivity of SiR samples. Increasing sizes of void as well as increasing number of voids resulted in increase in polarization and depolarization currents as well as the conductivity of the SiR samples. Thus study suggests that PDC measurement can be a tool in analysing and detecting voids in solid insulation.
format	Thesis
qualification_level	Master's degree
author	Mohd. Yusof, Nur Farhana
author_facet	Mohd. Yusof, Nur Farhana
author_sort	Mohd. Yusof, Nur Farhana
title	Polarization and depolarization current study in polymeric insulation containing voids
title_short	Polarization and depolarization current study in polymeric insulation containing voids
title_full	Polarization and depolarization current study in polymeric insulation containing voids
title_fullStr	Polarization and depolarization current study in polymeric insulation containing voids
title_full_unstemmed	Polarization and depolarization current study in polymeric insulation containing voids
title_sort	polarization and depolarization current study in polymeric insulation containing voids
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/78370/1/NurFarhanaMohdMFKE2015.pdf
_version_	1747817972659912704

Polarization and depolarization current study in polymeric insulation containing voids

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