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On the feasibility of using poles computed from Frequency Domain Spectroscopy to assess oil impregnated paper insulation conditions

Hadjadj Yazid, Meghnefi Fethi, Fofana Issouf et Ezzaidi Hassan. (2013). On the feasibility of using poles computed from Frequency Domain Spectroscopy to assess oil impregnated paper insulation conditions. Energies, 6, (4), p. 2204-2220.

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URL officielle: https://doi.org/10.3390/en6042204

Résumé

Frequency Domain Spectroscopy (FDS) is an effective tool allowing assessing the condition of oil-paper insulation system in power equipment. However, results from these measurements are known to be greatly influenced by various parameters, including insulation aging, moisture content, and insulation geometry/volume, together with environmental condition such as temperature. In this contribution, a series of experiments have been performed under controlled laboratory conditions. The dielectric response of the oil impregnated paper, along with the degree of polymerization and moisture content, were monitored. Since dielectric parameters are geometry dependent, poles (independent of the geometry) which depends on resistivity and permittivity, were considered to assess the condition of the insulation. From the investigations performed on new and aged samples, it is shown that poles (P) can be regarded as insulation aging indicator. It is also shown that a per unit value based on the Dielectric Dissipation Factor (DDF), measured in the frequency range from 1 to 1000 Hz can be correlated to moisture content in the insulation paper.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:6
Numéro:4
Pages:p. 2204-2220
Version évaluée par les pairs:Oui
Date:2013
Sujets:Sciences naturelles et génie > Génie > Génie des matériaux et génie métallurgique
Sciences naturelles et génie > Génie > Génie mécanique
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées > Module d'ingénierie
Mots-clés:dielectric spectroscopy, dielectric dissipation factor, moisture content, oil-paper insulation, poles, spectroscopie diélectrique, facteur de dissipation diélectrique, teneur en humidité, isolation huile-papier, pôles
Déposé le:05 juill. 2018 13:44
Dernière modification:05 juill. 2018 14:10
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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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