Charge migration of multilayer oil paper on the process of partial discharge under AC voltage
Abstract As one of the main reasons for the deterioration of Nomex paper and charge migration, partial discharge (PD) plays a critical role during PD degradation. In this study, the PD characteristics of multilayer oil paper are focused on. In order to explore the characteristics of charge migration...
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2021-07-01
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Series: | IET Generation, Transmission & Distribution |
Online Access: | https://doi.org/10.1049/gtd2.12157 |
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doaj-8df4a4e291d046cca1968d86e3215ea22021-07-14T13:25:33ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952021-07-0115142075208410.1049/gtd2.12157Charge migration of multilayer oil paper on the process of partial discharge under AC voltageBo Gao0Yixuan Li1Kai Liu2Xiaonan Li3Yan Yang4Guangning Wu5School of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaSchool of Electrical Engineering Southwest Jiaotong University Chengdu ChinaAbstract As one of the main reasons for the deterioration of Nomex paper and charge migration, partial discharge (PD) plays a critical role during PD degradation. In this study, the PD characteristics of multilayer oil paper are focused on. In order to explore the characteristics of charge migration, the experiments of the relative permittivity, conductivity, isothermal surface potential decay, scanning electron microscopy and Fourier infrared spectroscopy have been carried out. The results show that the discharge branches of the second layer are two and three times longer than those in the first layer. In addition, the trap level of the first layer for PD degradation samples increases with the degree of PD degradation. The charges captured by deep traps provide seed charges for PD on the surface of the first layer. The charge transportation will accelerate the formation of shallow traps. The charge distribution and shallow traps contribute to the expansion of discharge branches.https://doi.org/10.1049/gtd2.12157 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bo Gao Yixuan Li Kai Liu Xiaonan Li Yan Yang Guangning Wu |
spellingShingle |
Bo Gao Yixuan Li Kai Liu Xiaonan Li Yan Yang Guangning Wu Charge migration of multilayer oil paper on the process of partial discharge under AC voltage IET Generation, Transmission & Distribution |
author_facet |
Bo Gao Yixuan Li Kai Liu Xiaonan Li Yan Yang Guangning Wu |
author_sort |
Bo Gao |
title |
Charge migration of multilayer oil paper on the process of partial discharge under AC voltage |
title_short |
Charge migration of multilayer oil paper on the process of partial discharge under AC voltage |
title_full |
Charge migration of multilayer oil paper on the process of partial discharge under AC voltage |
title_fullStr |
Charge migration of multilayer oil paper on the process of partial discharge under AC voltage |
title_full_unstemmed |
Charge migration of multilayer oil paper on the process of partial discharge under AC voltage |
title_sort |
charge migration of multilayer oil paper on the process of partial discharge under ac voltage |
publisher |
Wiley |
series |
IET Generation, Transmission & Distribution |
issn |
1751-8687 1751-8695 |
publishDate |
2021-07-01 |
description |
Abstract As one of the main reasons for the deterioration of Nomex paper and charge migration, partial discharge (PD) plays a critical role during PD degradation. In this study, the PD characteristics of multilayer oil paper are focused on. In order to explore the characteristics of charge migration, the experiments of the relative permittivity, conductivity, isothermal surface potential decay, scanning electron microscopy and Fourier infrared spectroscopy have been carried out. The results show that the discharge branches of the second layer are two and three times longer than those in the first layer. In addition, the trap level of the first layer for PD degradation samples increases with the degree of PD degradation. The charges captured by deep traps provide seed charges for PD on the surface of the first layer. The charge transportation will accelerate the formation of shallow traps. The charge distribution and shallow traps contribute to the expansion of discharge branches. |
url |
https://doi.org/10.1049/gtd2.12157 |
work_keys_str_mv |
AT bogao chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage AT yixuanli chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage AT kailiu chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage AT xiaonanli chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage AT yanyang chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage AT guangningwu chargemigrationofmultilayeroilpaperontheprocessofpartialdischargeunderacvoltage |
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1721302715464679424 |