LiveZilla Live Chat Software

Constellation, le dépôt institutionnel de l'Université du Québec à Chicoutimi

Influence of aging on oil degradation and gassing tendency for mineral oil and synthetic ester under low energy discharge electrical faults

Loiselle Luc, Mohan Rao U. et Fofana Issouf. (2020). Influence of aging on oil degradation and gassing tendency for mineral oil and synthetic ester under low energy discharge electrical faults. Energies, 13, (3), p. 595.

[img]
Prévisualisation
PDF - Version publiée
Disponible sous licence Creative Commons Attribution.

786kB

URL officielle: http://dx.doi.org/doi:10.3390/en13030595

Résumé

The intent of this work is to understand the influence of low energy discharge electric faults in mineral oil and synthetic esters on liquid degradation and gassing tendency at different aging conditions (based on acidity values). A low energy discharge electric fault has been created by continuous discharge of 9 kV for five hours on the liquid surface using a suitable laboratory setup. Liquid degradation is reported by adopting UV spectroscopy, turbidity, and particle counter measurements. The gassing tendency is understood by dissolved gas analysis using Duval’s triangle and Duval’s pentagon methods for mineral oil and non-mineral oils accordingly. It is observed that the influence of low energy discharges on liquid degradation is higher in mineral oils than synthetic esters. The fault gasses in mineral oil are involved with electrical and thermal faults accompanied by stray gassing whereas only partial discharge activity is noticed for synthetic esters. Importantly, the existence of low energy discharge faults like corona discharges will involve a generation of excess high molecular weight products as compared to low molecular weight products that are soluble in liquid volume.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:13
Numéro:3
Pages:p. 595
Version évaluée par les pairs:Oui
Date:29 Janvier 2020
Sujets:Sciences naturelles et génie > Génie > Génie électrique et génie électronique
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées > Module d'ingénierie
Mots-clés:Transformer, insulating liquids, ester fluids, transformateur, liquides isolants, fluides esters
Déposé le:29 janv. 2020 22:05
Dernière modification:29 janv. 2020 22:05
Afficher les statistiques de telechargements

Éditer le document (administrateurs uniquement)

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.

Bibliothèque Paul-Émile-Boulet, UQAC
555, boulevard de l'Université
Chicoutimi (Québec)  CANADA G7H 2B1
418 545-5011, poste 5630