Oil-immersed power transformer

The utility model discloses an oil-immersed power transformer which comprises a transformer body and a base, and the base is composed of two steel channels which are connected to the bottom of the transformer body in a spaced mode. The supporting plate is connected to the mounting platform; the upper surface of the supporting plate is provided with two first through grooves and two first plates. The two first through grooves are used for being connected with channel steel in an inserted mode. The two first plates are vertically connected with the supporting plate, are arranged on the supporting plate at intervals and are arranged between the two first through grooves; the two locking pieces respectively penetrate through the base and the two first plates and are used for locking the base and the first plates; the two pressing pieces are arranged on the stand columns in a sleeving mode respectively and connected with the side wall of the supporting plate. Therefore, the technical problems that the contact area