Transformer film-wrapped winding

The utility model relates to a transformer film-wrapped winding which is wound on a winding former. Insulating end rings are arranged at two ends of the winding former. Film-wrapped conductors are wound in the middle of each insulating end ring; a DMD prepreg oil duct is arranged between the film-wrapped conductors; the outside of the film-wrapped conductors is wrapped with a weftless glass tape; each film-wrapped conductor is in a polyester film wrapped conductor structure. Polyester films are in a three-lay structure; the polyester films are wound on the conductors, with two polyester films positively wound and the other one reversely wound; the polyester films are 0.03mm thick for winding; total insulation thickness is 0.2mm. The transformer film-wrapped winding has the advantages that the winding is high in heat tolerance, high in mechanical strength, stable in electrical performance and energy saving and is reliable; the distribution transformer products made with the winding are simple in structure and