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Preventive and corrective maintenance for transformers in operation
The purpose of this paper is to highlight the advantages of applying a preventive and corrective maintenance method in relation to the life of the insulation system of the transformers in operation. This paper proposes a maintenance method based on the revitalization of the insulation of power transformers, in order to extend their life. Two case studies are presented, and the results of the measurements made before and after the revitalization process support the requirements of a preventive and corrective maintenance method.