Bétié Amidou, Mohan Rao U., Fofana Issouf, Fethi Meghnefi et Yéo Zié. (2019). Influence of cellulose paper on gassing tendency of transformer oil under electrical discharge. IEEE Transactions on Dielectrics and Electrical Insulation, 26, (6), p. 1729-1737.
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URL officielle: http://dx.doi.org/doi:10.1109/TDEI.2019.008039
Résumé
The intent of this work is to evaluate the influence of cellulose insulation paper on gassing tendency of transformer oil under electrical discharge conditions. For comprehensive enumeration, insulation oil was thermally stressed at 115°C as per ASTM D 1934 with a controlled thermal aging history. The thermally aged oils were considered for gassing tendency evaluation as per ASTM D 6180 (5 hours, 10 kV AC) in the presence of cellulose. Different cellulose Kraft paper proportions including 0, 10, 20, and 30% of aged oil were introduced in to discharge cell. Different cellulose proportions and aging conditions were considered to understand the impact of cellulose while understanding the decomposition aspects of insulation. Diagnostic measurements with those including dissolved gas analysis, moisture, interfacial tension, turbidity, dissolved decay contents, acidity, and dissipation factor were performed before and after gassing tendency evaluation. It was found that, cellulose paper aids significantly in increasing dissolved gases and moisture in oil during electrical discharge. Importantly, diagnostic measurements have shown the ability of paper to absorb certain decomposition products during the discharge process.
Type de document: | Article publié dans une revue avec comité d'évaluation |
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Volume: | 26 |
Numéro: | 6 |
Pages: | p. 1729-1737 |
Version évaluée par les pairs: | Oui |
Date: | 4 Décembre 2019 |
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: | oils, discharges (electric), aging, power transformer insulation, oil insulation, gases, huiles, décharges (électriques), vieillissement, isolation de transformateur de puissance, isolation d'huile, gaz, transformer, mineral oil, electrical discharge , cellulose paper |
Déposé le: | 18 févr. 2021 19:56 |
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Dernière modification: | 18 févr. 2021 19:56 |
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