A comparative aging study of various commercial biodegradable insulation fluids
A comparative aging study of various commercial biodegradable insulation fluids
The aging behaviour of three insulation fluids from sustainable sources (natural ester, synthetic ester, and a bio-based hydrocarbon fluid) were compared with that of a conventional mineral oil. All samples contained kraft paper and its degree of polymerisation (DP) confirmed that the aged samples covered most of the transformer lifecycle. The reported mitigating effect of ester oils on paper aging was observed in both ester oils whilst the bio-based hydrocarbon fluid exhibited comparable behaviour to the mineral oil. Natural ester had the highest values of acidity, viscosity and dielectric loss after aging and the bio-based hydrocarbon oil the lowest. The bio-based hydrocarbon fluid would be an excellent replacement for mineral oil in plant, particularly due to its very low viscosity which would aid cooling but with the drawback that paper aging is not mitigated. A synthetic ester is preferable over a natural ester in plant since its chemical, physical and dielectric properties do not deteriorate dramatically after aging.
Natural esters, Synthetic esters, Mineral oil, Aging, Kraft paper
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Lewin, Paul
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Andritsch, Thomas
8681e640-e584-424e-a1f1-0d8b713de01c
Wilson, Gordon
2667b65e-987f-4089-9739-433b7396d736
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Lewin, Paul
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Andritsch, Thomas
8681e640-e584-424e-a1f1-0d8b713de01c
Wilson, Gordon
2667b65e-987f-4089-9739-433b7396d736
Hosier, Ian, Lewin, Paul, Andritsch, Thomas and Wilson, Gordon
(2023)
A comparative aging study of various commercial biodegradable insulation fluids.
In Proceedings of the 23rd International Symposium on High Voltage Engineering.
6 pp
.
(In Press)
Record type:
Conference or Workshop Item
(Paper)
Abstract
The aging behaviour of three insulation fluids from sustainable sources (natural ester, synthetic ester, and a bio-based hydrocarbon fluid) were compared with that of a conventional mineral oil. All samples contained kraft paper and its degree of polymerisation (DP) confirmed that the aged samples covered most of the transformer lifecycle. The reported mitigating effect of ester oils on paper aging was observed in both ester oils whilst the bio-based hydrocarbon fluid exhibited comparable behaviour to the mineral oil. Natural ester had the highest values of acidity, viscosity and dielectric loss after aging and the bio-based hydrocarbon oil the lowest. The bio-based hydrocarbon fluid would be an excellent replacement for mineral oil in plant, particularly due to its very low viscosity which would aid cooling but with the drawback that paper aging is not mitigated. A synthetic ester is preferable over a natural ester in plant since its chemical, physical and dielectric properties do not deteriorate dramatically after aging.
More information
Accepted/In Press date: 4 September 2023
Venue - Dates:
23rd International Symposium on High Voltage Engineering, , Glasgow, United Kingdom, 2023-08-28 - 2023-09-01
Keywords:
Natural esters, Synthetic esters, Mineral oil, Aging, Kraft paper
Identifiers
Local EPrints ID: 481966
URI: http://eprints.soton.ac.uk/id/eprint/481966
PURE UUID: 38da4bcf-2c4f-410f-8282-1bdbaa2baf5b
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Date deposited: 14 Sep 2023 16:37
Last modified: 18 Mar 2024 03:26
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