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Influence of ageing on oil degradation and gassing tendency under high-energy electrical discharge faults for mineral oil and synthetic ester

Loiselle Luc, Mohan Rao U. et Fofana Issouf. (2020). Influence of ageing on oil degradation and gassing tendency under high-energy electrical discharge faults for mineral oil and synthetic ester. High Voltage, 5, (6), p. 731-738.

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URL officielle: http://dx.doi.org/doi:10.1049/hve.2019.0291

Résumé

In this work, mineral oil and synthetic esters were selected at different ageing factors (based on acidity values). Fresh and aged oils have been subjected to high-energy discharges (repeated 100 breakdowns) to simulate electric faults of highly vulnerable intensity. The intent of this work is to understand the influence of high-energy electric faults on oil degradation and gassing tendency at different ageing conditions. In this study, the influence of the high-energy discharges on degradation and gassing tendency at different ageing factors is reported for mineral oil and synthetic esters. Oil degradation is reported by adopting ultraviolet spectroscopy, turbidity and particle counter as per american society for testing and materials (ASTM) standard test methods. Gassing tendencies and fault gas analysis are understood by dissolved the gas analysis using Duval's triangle and Duval's pentagon methods for mineral and non-mineral oils. It is found that the influence of high-energy discharges on oil degradation is higher in mineral oils to that of the synthetic esters. The intensity of the gassing tendency is higher for ester fluids; however, as per the Duval methods, the faulty conditions are at lower levels as compared to mineral oils.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:5
Numéro:6
Pages:p. 731-738
Version évaluée par les pairs:Oui
Date:Décembre 2020
Sujets:Sciences naturelles et génie > Génie
Sciences naturelles et génie > Génie > Génie électrique et génie électronique
Sciences naturelles et génie > Sciences appliquées
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées > Module d'ingénierie
Mots-clés:insulating oils, electric breakdown, ageing, discharges (electric), huiles isolantes, panne électrique, vieillissement, décharges (électriques), electric breakdown, ageing, discharges (electric), insulating oils, oil degradation, high‐energy electrical discharge faults, mineral oil, synthetic ester, fresh oils, aged oils, fault gas analysis, ultraviolet spectroscopy, ASTM standard test methods, Duval's triangle methods, Duval's pentagon methods
Déposé le:18 févr. 2021 20:14
Dernière modification:18 févr. 2021 20:14
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Creative Commons LicenseSauf indication contraire, les documents archivés dans Constellation sont rendus disponibles selon les termes de la licence Creative Commons "Paternité, pas d'utilisation commerciale, pas de modification" 2.5 Canada.

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