Transformer with top-mounted radiator

The utility model belongs to the technology field of the electric power transformer, in particular to a transformer with top radiator, which comprises an oil tank and a radiator arranged above the top cover of the oil tank; the section of the oil tank is rectangular, the corner of the oil tank is provided with a spacer plate by welding, a cold oil duct is enclosed between the spacer plate and the oil tank wall at the corner, the lower end of the cold oil duct is communicated with the oil tank body, the upper end of the cold oil duct is communicated with the cold oil outlet at the side of the baseplate of the radiator; the middle of the top cover of the cold oil duct is provided with an opening which is communicated with a hot oil inlet at the middle of the baseplate of the radiator. The utility model is applicable to a top radiator with a simple structure, an easy fabrication and a low fabricating cost.