MV / LV TRANSFORMER WITH DRY INSULATION, WITH A LINEARLY DISTRIBUTED ELECTRIC FIELD, FOR THE DISTRIBUTION OF ELECTRICAL ENERGY IN RURAL AREAS

摘要

The present invention relates to a single or multi-phase MV / LV electrical transformer, with dry type insulation, intended for indoor or outdoor installation. The transformer according to the invention is characterized in that it comprises for each of its phases an insulating cylinder (3) located between the LV winding (2) and the MT winding (6), and in that this cylinder (3) is coated on its inner surface with a conductive or semi-conductive layer conductive (4) brought to the earth potential, and on its outer surface of a layer of linear voltage distributor semiconductor material (5) on which the MT winding (2) is locally wound. /P