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Effect of different shapes of electrodes on bridging in contaminated transformer oil

Effect of different shapes of electrodes on bridging in contaminated transformer oil
Effect of different shapes of electrodes on bridging in contaminated transformer oil
Contaminated transformer oil has been tested under non uniform electric fields and the effect of different electrode systems presented in this paper. Three different electric fields were examined i.e. DC, AC and DC biased AC. These experiments revealed that with all the different electrodes arrangements, contaminated particles were always formed bridges between electrodes under DC electric field. AC field does not induce any bridging. Combination of AC and DC enhances the bridging dynamics. The bridges were thicker or more particles attracted with more uniform electric field (spherical electrode) than diverse electric field (needle-plane).
114-117
Mahmud, S.
37e36ae1-2092-474b-b362-7d6b10af0247
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Golosnoy, I.O.
40603f91-7488-49ea-830f-24dd930573d1
Wilson, G.
8fd34f42-b70e-48a6-b256-cd6f938aa8c1
Jarman, P.
a9793465-653f-4d51-ad8c-3fb313393aaa
Mahmud, S.
37e36ae1-2092-474b-b362-7d6b10af0247
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Golosnoy, I.O.
40603f91-7488-49ea-830f-24dd930573d1
Wilson, G.
8fd34f42-b70e-48a6-b256-cd6f938aa8c1
Jarman, P.
a9793465-653f-4d51-ad8c-3fb313393aaa

Mahmud, S., Chen, G., Golosnoy, I.O., Wilson, G. and Jarman, P. (2014) Effect of different shapes of electrodes on bridging in contaminated transformer oil. 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States. 19 - 22 Oct 2014. pp. 114-117 . (doi:10.1109/CEIDP.2014.6995785).

Record type: Conference or Workshop Item (Paper)

Abstract

Contaminated transformer oil has been tested under non uniform electric fields and the effect of different electrode systems presented in this paper. Three different electric fields were examined i.e. DC, AC and DC biased AC. These experiments revealed that with all the different electrodes arrangements, contaminated particles were always formed bridges between electrodes under DC electric field. AC field does not induce any bridging. Combination of AC and DC enhances the bridging dynamics. The bridges were thicker or more particles attracted with more uniform electric field (spherical electrode) than diverse electric field (needle-plane).

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sm_iog_2014CEIDP_conf_p114.pdf - Accepted Manuscript
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More information

Published date: October 2014
Venue - Dates: 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States, 2014-10-19 - 2014-10-22
Organisations: EEE

Identifiers

Local EPrints ID: 373908
URI: http://eprints.soton.ac.uk/id/eprint/373908
PURE UUID: addf16cc-a5ca-4512-88bb-c5738cd057fa

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Date deposited: 03 Feb 2015 16:22
Last modified: 25 Nov 2019 20:37

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