THREE-DIMENSIONAL WOUND CORE OPEN DRY-TYPE TRANSFORMER COIL STRUCTURE AND WINDING METHOD THEREFOR

摘要

A three-dimensional wound core open dry-type transformer coil structure and a winding method therefor. The three-dimensional wound core open dry-type transformer coil structure comprises a three-dimensional wound core, an insulating cylinder disposed outside the three-dimensional wound core, and a coil winding wound onto the insulating cylinder. The coil winding is formed by winding insulating wires; comb-shaped supporting bars are uniformly disposed outside the insulating cylinder; the insulating wires are wound between racks of the comb-shaped supporting bars; coil taps are connected to the coil winding; the coil taps are led out onto a surface of the coil winding; a head end of the coil winding and a part of the coil winding leading out the coil taps are wound into a forward and reverse hybrid coil; and the remaining parts are wound into a fully forward coil.