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Surface potential decay: effect of different corona charging times

Surface potential decay: effect of different corona charging times
Surface potential decay: effect of different corona charging times
Surface potential decay measurement is a widely used tool to test the electrical properties of insulation materials. However, physical mechanism of the surface potential decay is still poorly understood. In this paper, the effect of corona charging time has been investigated. It has been found that as charging time gets longer initially the surface potential decays faster which is consistent with the existing observations. However, after the charging time reaches a certain length (changing with charging voltage), the surface potential decay becomes slower as the charging time increases. This type of behaviour has not been reported in literature. Further study on this phenomenon using the Pulsed Electro-acoustic (PEA) method which quantifies charge distribution and dynamics inside the sample validated the observation. Finally, the surface potential decay curves were analysed by fitting a double exponential decay equation and simulated by a bipolar charge transport model
978-1-4673-1252-3
620-623
Zhuang, Y.
11780158-107b-4653-85ca-d4996e8ea5b2
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Chappell, P.H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Rotaru, M.D.
c53c5038-2fed-4ace-8fad-9f95d4c95b7e
Zhuang, Y.
11780158-107b-4653-85ca-d4996e8ea5b2
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Chappell, P.H.
2d2ec52b-e5d0-4c36-ac20-0a86589a880e
Rotaru, M.D.
c53c5038-2fed-4ace-8fad-9f95d4c95b7e

Zhuang, Y., Chen, G., Chappell, P.H. and Rotaru, M.D. (2012) Surface potential decay: effect of different corona charging times. 2012 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Canada. 14 - 17 Oct 2012. pp. 620-623 .

Record type: Conference or Workshop Item (Paper)

Abstract

Surface potential decay measurement is a widely used tool to test the electrical properties of insulation materials. However, physical mechanism of the surface potential decay is still poorly understood. In this paper, the effect of corona charging time has been investigated. It has been found that as charging time gets longer initially the surface potential decays faster which is consistent with the existing observations. However, after the charging time reaches a certain length (changing with charging voltage), the surface potential decay becomes slower as the charging time increases. This type of behaviour has not been reported in literature. Further study on this phenomenon using the Pulsed Electro-acoustic (PEA) method which quantifies charge distribution and dynamics inside the sample validated the observation. Finally, the surface potential decay curves were analysed by fitting a double exponential decay equation and simulated by a bipolar charge transport model

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Published date: 14 October 2012
Venue - Dates: 2012 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Canada, 2012-10-14 - 2012-10-17
Organisations: EEE

Identifiers

Local EPrints ID: 344325
URI: http://eprints.soton.ac.uk/id/eprint/344325
ISBN: 978-1-4673-1252-3
PURE UUID: 0fb095cf-d257-43c1-b9c0-d716bc5b96be

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Date deposited: 18 Oct 2012 10:39
Last modified: 25 Nov 2019 20:53

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