ELECTRIC WINDING BODY AND TRANSFORMER HAVING FORCED COOLING

An electrical winding body includes an electrically conductive winding and an insulation surrounding the winding. The surrounding insulation surrounds the entire winding and forms a mechanically stable winding body. At least one continuous channel having an opening in the electrical winding body is disposed inside the winding body. An extension element is placed in the openings of the continuous channels to elongate the channels beyond the dimensions of the electrical winding body, thus providing for improved cooling. Side elements are additionally attached on the outer wall of the electrical winding body to create an intermediate space which forms a new cooling channel that produces an additional cooling effect due to an air current created by the chimney effect.