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.
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Hao, J
c68520ff-e807-4418-84aa-231ad53a5c34
Chen, G
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Ma, Z
4ec3d784-1f40-4fe3-8b04-ffbc1151e4e8
Liao, R
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Yang, L
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22 August 2011
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.
.
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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Published date: 22 August 2011
Additional Information:
Event Dates: 22-26 August 2011
Venue - Dates:
17th International Symposium on High Voltage Engineering, Hannover, Germany, 2011-08-22 - 2011-08-26
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: 14 Mar 2024 10:09
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Contributors
Author:
J Hao
Author:
G Chen
Author:
Z Ma
Author:
R Liao
Author:
L Yang
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