Railway high-voltage traction transformer

A railway high voltage draw transformer belonging to the transformer manufacturing technical field, comprises a box body (12) with two box bottoms (19), a machine body comprising a winding (1) and an iron core (2), and an oil box including an upper segment oil box (14) and a lower segment oil box (8). The two ends of the winding are provided with an insulating end ring (4) that the inside is provided with a hard fiber container (5). The iron core forms a firm integral body through a lateral girder (10), an upper drawstring (6), a block (21), a drawplate (15), a high voltage upper nip piece (13) and a low voltage upper nip piece (7). The iron core bottom is provided in the lower segment oil box (8), and a wedging wooden unit is used to wedge all around. The winding makes the axial fixing through a stapling (16) on a clip plate (17) engageable with the drawplate (15) of the iron core. The upper segment oil box is provided with four locating devices (11). The machine body is arranged on the planes of the two box bottoms (19). The utility model can guarantee that the displacement and damage are not to be produced between the box body and the machine body in the process of the transformer transporting, and the suspended core check are not to be needed after the transformer is transported to the locale.