An oil immersed stereo wound-core amorphous alloy transformer, comprising an iron core, a high-low voltage winding, leads and a tank, wherein the core comprises three single frames which are made of amorphous alloy strips by winding and are identical in structure, and the single frames have a rectangular shape; the vertical sides of every two adjacent frames fit together fixedly to form a core pillar, and the horizontal sides of the single frame form iron yokes; the cross sections of the core pillars have an approximately circular or polygonal shape; the transformer further comprises a clamp, comprising a quasi-triangular upper clamp, a quasi-triangular lower clamp, and posts, the lower clamp is provide with three food pads, wherein one end of each pad foot is for fixed connection, and the other end is welded to a side of the lower clamp; the iron yokes in the lower portion of the iron core are located on the foot pads, and the high-low voltage winding is wound on the core pillars; the clamp, the iron core, and the high-low voltage winding wound on the core pillars are arranged within the tank. Compared with the existing technologies, the oil immersed stereo wound-core amorphous alloy transformer according to the present invention has the advantages of fewer processing steps, seamless iron yokes, and lesser impact of external disturbances on the core performance. Fewer processing steps increase working efficiency. The no-load loss of the transformer is further reduced and more energy is saved.
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