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Partial discharge behavior of mineral oil based nanofluids

Partial discharge behavior of mineral oil based nanofluids
Partial discharge behavior of mineral oil based nanofluids
A previous study showed that both mineral oil based nanofluids with 0.01% silica mass fraction and with 0.1% fullerene mass fraction have a higher AC breakdown strength than mineral oil. Breakdown occurs following discharge initiation and propagation in the oil. The breakdown strength value alone provides little information on the discharge process. Therefore, it is important to investigate the details of the discharge mechanisms in mineral oil and in nanofluids. Hence, this study focuses on the partial discharge (PD) behavior of mineral oil, silica and fullerene nanofluids. The total charge, voltage and pulse shape were recorded with the help of a high bandwidth PD measuring system. The discharge mechanism in mineral oil appeared to depend strongly on the polarity of the applied DC voltage. Under positive DC voltage, the silica and the fullerene nanofluids show increased inception voltage and a reduction of the total discharge magnitude compared to the reference mineral oil. Under negative polarity, inception voltage and discharge magnitude of the nanofluids and the reference mineral oil are virtually the same
2747-2753
Jin, H.
193ff969-2cd3-4cf6-bfc2-2bb59eac99bc
Morshuis, P.H.F.
59248480-efdb-444e-b3f5-b39a3355315a
Rodrigo Mor, A.
54f2d7ff-4e1d-4209-8486-e10ee2b7aa3f
Smit, J.J.
21d902fe-6d70-4dff-ad29-3eb8146c0ea5
Andritsch, T.
8681e640-e584-424e-a1f1-0d8b713de01c
Jin, H.
193ff969-2cd3-4cf6-bfc2-2bb59eac99bc
Morshuis, P.H.F.
59248480-efdb-444e-b3f5-b39a3355315a
Rodrigo Mor, A.
54f2d7ff-4e1d-4209-8486-e10ee2b7aa3f
Smit, J.J.
21d902fe-6d70-4dff-ad29-3eb8146c0ea5
Andritsch, T.
8681e640-e584-424e-a1f1-0d8b713de01c

Jin, H., Morshuis, P.H.F., Rodrigo Mor, A., Smit, J.J. and Andritsch, T. (2015) Partial discharge behavior of mineral oil based nanofluids. IEEE Transactions on Dielectrics & Electrical Insulation, 22 (5), 2747-2753. (doi:10.1109/TDEI.2015.005145).

Record type: Article

Abstract

A previous study showed that both mineral oil based nanofluids with 0.01% silica mass fraction and with 0.1% fullerene mass fraction have a higher AC breakdown strength than mineral oil. Breakdown occurs following discharge initiation and propagation in the oil. The breakdown strength value alone provides little information on the discharge process. Therefore, it is important to investigate the details of the discharge mechanisms in mineral oil and in nanofluids. Hence, this study focuses on the partial discharge (PD) behavior of mineral oil, silica and fullerene nanofluids. The total charge, voltage and pulse shape were recorded with the help of a high bandwidth PD measuring system. The discharge mechanism in mineral oil appeared to depend strongly on the polarity of the applied DC voltage. Under positive DC voltage, the silica and the fullerene nanofluids show increased inception voltage and a reduction of the total discharge magnitude compared to the reference mineral oil. Under negative polarity, inception voltage and discharge magnitude of the nanofluids and the reference mineral oil are virtually the same

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Published date: October 2015
Organisations: EEE

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Local EPrints ID: 384105
URI: http://eprints.soton.ac.uk/id/eprint/384105
PURE UUID: 9e8c9b75-7ab4-4e24-8d6b-075c38c5ae25
ORCID for T. Andritsch: ORCID iD orcid.org/0000-0002-3462-022X

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Date deposited: 04 Dec 2015 14:43
Last modified: 03 Dec 2019 01:36

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Contributors

Author: H. Jin
Author: P.H.F. Morshuis
Author: A. Rodrigo Mor
Author: J.J. Smit
Author: T. Andritsch ORCID iD

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