The isolating transformer mt / bt is dry, has electrical field linearly matter, for the distribution of the electrical energy in a rural environment

摘要

The present invention relates to an electrical transformer mt / bt mono- or multi-phase, with insulation of the dry type, intended to an installation in the interior or extérieur.le transformer according to the invention is characterized by the fact that it includes, for each of its phases an insulating cylinder (3) situated between the winding bt (2) and the winding mt (6), and this cylinder (3) is coated on its inner surface of a conductive layer of conductive or semiconductor - (4) connected to the potential of earth, and on its outer surface of a layer of material that is semi-rigid - conductor distributor linear voltage (5) on which is wound, locally, the winding mt (2).