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Bridging in contaminated transformer oil under DC and AC electric field

Bridging in contaminated transformer oil under DC and AC electric field
Bridging in contaminated transformer oil under DC and AC electric field
There are two experimental set up have been established to investigate the bridging effect between two electrodes with different potentials under ac and dc voltages. This paper will explain the full details of the experimental setup and the results. These experiments carried out on pressboard particles under three different levels of ac and dc voltages. Several contamination levels have been investigated. Optical images of particle accumulation have been recorded along with associated conduction current measurement during experiments. At higher voltages the rate of bridge formation is increased along with an associated current increase. The major differences between ac and dc bridges are the shapes of the particle accumulation. The bridge formation rate for ac is slower than dc.
1742-6588
012007- (6p)
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. (2013) Bridging in contaminated transformer oil under DC and AC electric field. Journal of Physics: Conference Series, 472, 012007- (6p). (doi:10.1088/1742-6596/472/1/012007).

Record type: Article

Abstract

There are two experimental set up have been established to investigate the bridging effect between two electrodes with different potentials under ac and dc voltages. This paper will explain the full details of the experimental setup and the results. These experiments carried out on pressboard particles under three different levels of ac and dc voltages. Several contamination levels have been investigated. Optical images of particle accumulation have been recorded along with associated conduction current measurement during experiments. At higher voltages the rate of bridge formation is increased along with an associated current increase. The major differences between ac and dc bridges are the shapes of the particle accumulation. The bridge formation rate for ac is slower than dc.

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Published date: 2013
Organisations: EEE

Identifiers

Local EPrints ID: 373907
URI: http://eprints.soton.ac.uk/id/eprint/373907
ISSN: 1742-6588
PURE UUID: f1b58b46-ed94-4d04-af3f-19ba8f163a94

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Date deposited: 02 Feb 2015 14:52
Last modified: 16 Dec 2019 20:20

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