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Mineral oil and ester based oil/paper insulation decaying assessment by FTIR measurements

Mohan Rao U., Fofana Issouf, Kartheek R., Yapi K. M. L. et Jaya T.. (2019). Mineral oil and ester based oil/paper insulation decaying assessment by FTIR measurements. Dans : ISH 2019: Proceedings of the 21st International Symposium on High Voltage Engineering , 26 au 30 août 2019, Budapest, Hongrie.

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Résumé

Esters based dielectric fluids have been widely researched since 1990’s for application in high voltage insulation applications. Since then, researchers are affirmative towards usage of ester based insulating fluids as a replicated to mineral insulation oils. The operating properties and aging performance of ester oils proved to be potential candidates for high voltage applications. In view of high temperatures and longevity of insulation systems, there also is a need to understand the chemical perspectives along with aging behaviour of ester oils. Accelerated aging of oil/paper insulation associated with mineral oil and synthetic ester with cellulose insulant has been experimentally simulated as per ASTM D 1934 at 115 ℃. Fourier Transform Infrared spectroscopy analysis of oils and cellulose papers is carried out at different aging factors. The compositional changes in oils and cellulose kraft paper with aging have been enumerated. The changes in the absorbance area for appropriate functional groups have been also reported. It is found that, the chemical stability of synthetic esters is superior to that of the mineral oil.

Type de document:Matériel de conférence (Non spécifié)
Date:28 Novembre 2019
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
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Mots-clés:Transformers, insulation, ester oils, FTIR spectroscopy, transformateurs, isolation, huiles d'ester, spectroscopie FTIR
Déposé le:05 févr. 2020 22:49
Dernière modification:05 févr. 2020 22:49
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