DRY-TYPE DISTRIBUTION AND POWER TRANSFORMER

摘要

the dry-type transformer according to the invention.with its winding concentric phase matched ("high voltage" is usually placed outside) and embedded in a dielectric block of resin.is characterized by the fact that the external surface (11) at least in the block of resin (5) disposed outside of the coil (1) is provided with cooling fins (10) with metalat least one electrical discontinuity in the periphery of the block (5) which is interposed between them, and that surface (11) and the blades (10).a film (13) in the semiconductor material of a low power, constant potential, the earth, preferably through a link 14.covering the surface of a dielectric block (5), the resin base (12) of the blades (10) are interconnected to the film (13).the invention improves the cooling of the dry type transformers, paving the way for the implementation of instruments of this type are smaller and more electrical power.