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Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current

Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current
Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current
Accurately assessing the ageing status of oil-paper insulation in transformer is essential and important. Polarization and Depolarization Current (PDC) technique is effective in assessing the condition of oil-paper insulation system. Though the PDC behaviour of mineral oil-paper insulation has been widely investigated, there is no report about how to make the quantitative analysis of mineral oil-paper insulation ageing condition by PDC. The PDC characteristics of mineral oil-paper insulation samples were investigated over the ageing period at 110°C. A new method for assessing the ageing condition of mineral oil-paper insulation by calculating the depolarization charge quantity was proposed. Results show that the depolarization charge quantity of mineral oil-paper insulation sample is very sensitive to its ageing condition. The stable depolarization charge quantity could be used to predict the ageing condition of mineral oil-paper insulation.
CD-ROM
Hao, J
c68520ff-e807-4418-84aa-231ad53a5c34
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Ma, Z
4ec3d784-1f40-4fe3-8b04-ffbc1151e4e8
Liao, R
23f38936-cf09-4873-8e23-493d61da4e97
Yang, L
f2d1d3b5-be52-4527-a29e-cc47d44f69d8
Hao, J
c68520ff-e807-4418-84aa-231ad53a5c34
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Ma, Z
4ec3d784-1f40-4fe3-8b04-ffbc1151e4e8
Liao, R
23f38936-cf09-4873-8e23-493d61da4e97
Yang, L
f2d1d3b5-be52-4527-a29e-cc47d44f69d8

Hao, J, Chen, G, Ma, Z, Liao, R and Yang, L (2011) Assessing Ageing Condition of Mineral Oil-Paper Insulation by Polarization/Depolarization Current. In 17th International Symposium on High Voltage Engineering. CD-ROM .

Record type: Conference or Workshop Item (Paper)

Abstract

Accurately assessing the ageing status of oil-paper insulation in transformer is essential and important. Polarization and Depolarization Current (PDC) technique is effective in assessing the condition of oil-paper insulation system. Though the PDC behaviour of mineral oil-paper insulation has been widely investigated, there is no report about how to make the quantitative analysis of mineral oil-paper insulation ageing condition by PDC. The PDC characteristics of mineral oil-paper insulation samples were investigated over the ageing period at 110°C. A new method for assessing the ageing condition of mineral oil-paper insulation by calculating the depolarization charge quantity was proposed. Results show that the depolarization charge quantity of mineral oil-paper insulation sample is very sensitive to its ageing condition. The stable depolarization charge quantity could be used to predict the ageing condition of mineral oil-paper insulation.

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More information

Published date: 22 August 2011
Additional Information: Event Dates: 22-26 August 2011
Venue - Dates: 17th International Symposium on High Voltage Engineering, Hannover, Germany, 2011-08-21 - 2011-08-25
Organisations: EEE

Identifiers

Local EPrints ID: 272719
URI: http://eprints.soton.ac.uk/id/eprint/272719
PURE UUID: ba87c73e-fc36-4bb0-b254-525e553e8a8f

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Date deposited: 25 Aug 2011 07:33
Last modified: 30 Sep 2020 16:31

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