Low-power electronic transformer

The invention discloses a low-power electronic transformer, and belongs to the technical field of electronic transformers. The low-power electronic transformer mainly comprises a mounting chassis, a bottom end cover seat, a connecting shell, a heat dissipation shell, a wire core main body, an oil injection pipe, sealing rings, a top end cover seat, a wiring terminal bar and an oil discharge pipe;the mounting chassis is coaxially mounted at the bottom of the bottom end cover seat through screws; the wire core main body is mounted at the top of the bottom end cover seat through main body screws; the upper end and the lower end of the connecting shell are connected and fixed to the top end cover seat and the bottom end cover seat through screws respectively; the sealing rings are arranged atthe joints of the two ends of the connecting shell; the heat dissipation shell sleeves the outer wall of the connecting shell in an attached mode; the top end of the oil injection pipe communicates with the top end cover seat