A three-phase 24
pulse wave double-Y-shaped output winding phase-shifting
rectifier transformer comprises primary windings, secondary windings and a core. A connection mode of the primary windings adopts triangle, star, hexagon or extended-hexagon connection, and the primary windings are improved in that rated
voltage of the primary windings is
high voltage or
low voltage. The secondary windings in each phase include a long-edge secondary winding, two middle short-edge secondary windings and two auxiliary short-edge secondary windings, the long-edge secondary windings in all phases are the same in turns, symmetrical and mutually unconnected, the middle short-edge secondary windings in all phases are the same in turns and symmetrical, the auxiliary short-edge secondary windings in all phases are the same in turns and symmetrical, the head end of the long-edge secondary winding in each phase is connected with the head ends of the middle short-edge secondary windings in other two phases, and the
tail end of the long-edge secondary winding in each phase is connected with the
tail ends of the auxiliary short-edge secondary windings in other two phases, so that three reversely connected double-Y-shaped windings are formed, each secondary winding is wound by
metal foil or conductors in an insulating mode, and the rated
voltage of each secondary winding is
high voltage or
low voltage. The primary winding and the secondary windings are in concentric or up-down arrangement on a core limb in each phase, and the core is a three-phase core in the shape of two stacked blocks or a triangle. The three-phase 24
pulse wave double-Y-shaped output winding phase-shifting
rectifier transformer is simple in structure and energy-saving.