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On the electrical properties of insulation oils

Vaughan, A. S., Hosier, I. L., Sutton, S. J. and Davis, F. J. (2005) On the electrical properties of insulation oils. In: Annual Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), 16-19 Oct 2005, Nashville, Tennesee, USA, pp. 221-224.

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Official URL: http://dx.doi.org/10.1109/CEIDP.2005.1560661

Abstract/Summary

Insulating oils are a major component of high voltage plant, including transformers, switchgear and cables. Consequentially, in terms of plant failure, changes in the electrical characteristics of the oil during ageing are of crucial importance. To address this issue, commercial insulating oil was subjected to controlled ageing under laboratory conditions. The electrical properties of the aged oils were then characterized using dielectric spectroscopy. The data suggest that a degree of electrical conductivity occurs in the aged oils, which reduces the insulating properties of the oil as ageing proceeds. The role of atmosphere and additives on the electrical properties of the oils were also explored. Results are compared with model samples, which contain known amounts of materials that may occur as by-products of the ageing process.

Item Type:Conference or Workshop Item (Paper)
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:16452
Additional Information:Proceedings ISBN: 0780392574

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