BEHAVIOUR OF NAPHTENIC TRANSFORMER OILS SUBMITTED TO THERMAL STRESS

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Published Feb 6, 2009
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Vol 9 No 1 (2009): Volume 9 / 2009

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Ilham KHELFANE
Centre of Research and Development of Electricity and Gas (CREDEG)-SONELGAZ, ALGERIA
Derradji REBBOUH
Centre of Research and Development of Electricity and Gas (CREDEG)-SONELGAZ, ALGERIA
Hocine MOULAI
Laboratory of Electrical and Industrial Systems, FEI, University of Sciences and Technology Houari Boumediene, ALGERIA
Azzeddine NACER
Laboratory of Electrical and Industrial Systems, FEI, University of Sciences and Technology Houari Boumediene, ALGERIA

Abstract

This work is devoted to the behaviour of naphtenic mineral oils of different degradation levels submitted to thermal stresses. In addition to the dissolved key gases analysis, the principal properties of the oil (dielectric strength, water content, relative permittivity, dissipation factor, and resistivity) are studied with accuracy in order to serve as an elementary diagnosis.

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