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Effect of particulates on the dielectric properties and breakdown strength of insulation oil

Effect of particulates on the dielectric properties and breakdown strength of insulation oil
Effect of particulates on the dielectric properties and breakdown strength of insulation oil
The dielectric properties of dodecylbenzene cable oil containing various concentrations of silica, paper, carbon and copper particles were explored. Dielectric spectroscopy and electrical conductivity measurements revealed a critical concentration above which the dielectric properties were adversely affected by the particles. A reduction in electrical breakdown strength was observed as the particle concentration increased. Carbon was the most deleterious material with only 0.005 wt. % required to cause a catastrophic reduction in breakdown strength. The results indicate that carbonaceous particulates, which might arise from electrical discharge activity, are particularly detrimental for high voltage plant.
Particulates, Dodecylbenzene, dielectric loss, electrical conductivity, electrical breakdown
376-379
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3

Hosier, Ian and Vaughan, Alun (2017) Effect of particulates on the dielectric properties and breakdown strength of insulation oil. 2017 Electrical Insulation conference, Baltimore, United States. 11 - 14 Jun 2017. pp. 376-379 .

Record type: Conference or Workshop Item (Paper)

Abstract

The dielectric properties of dodecylbenzene cable oil containing various concentrations of silica, paper, carbon and copper particles were explored. Dielectric spectroscopy and electrical conductivity measurements revealed a critical concentration above which the dielectric properties were adversely affected by the particles. A reduction in electrical breakdown strength was observed as the particle concentration increased. Carbon was the most deleterious material with only 0.005 wt. % required to cause a catastrophic reduction in breakdown strength. The results indicate that carbonaceous particulates, which might arise from electrical discharge activity, are particularly detrimental for high voltage plant.

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EIC2017-Paper211 - Accepted Manuscript
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Accepted/In Press date: 18 April 2017
Published date: 1 December 2017
Venue - Dates: 2017 Electrical Insulation conference, Baltimore, United States, 2017-06-11 - 2017-06-14
Keywords: Particulates, Dodecylbenzene, dielectric loss, electrical conductivity, electrical breakdown
Organisations: EEE

Identifiers

Local EPrints ID: 411009
URI: http://eprints.soton.ac.uk/id/eprint/411009
PURE UUID: ecf840f1-e8a0-4e52-b8c0-1a3fda884659
ORCID for Ian Hosier: ORCID iD orcid.org/0000-0003-4365-9385
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

Catalogue record

Date deposited: 13 Jun 2017 16:31
Last modified: 17 Dec 2019 01:52

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Contributors

Author: Ian Hosier ORCID iD
Author: Alun Vaughan ORCID iD

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