The invention discloses low loss power transformation equipment which comprises a clamping device, a box body and a winding, wherein the winding is made from graphene, the clamping device comprises four horizontal plates, four longitudinal plates and four hook plates which are adjustable in length and are combined into a stable cuboid frame, shutters which are used for ventilating are arranged onthe front wall and the corresponding rear wall of the box body, a base is arranged at the bottom inside the box body, two bars in the middle of the base protrude upwards, the protruded horizontal barscan be in contact with the winding, and the function of fastening the winding is realized.