Oil-immersed transformer cooling system

The utility model discloses an oil-immersed transformer cooling system, and relates to the technical field of transformers. The oil-immersed transformer comprises an oil tank, an oil-immersed transformer body, a temperature monitoring mechanism and a mounting plate, wherein the oil-immersed transformer body and the temperature monitoring mechanism are arranged in the oil tank. Through the design of the heat conducting plate, when it is detected that the temperature in the oil tank is higher than the normal temperature, the two protection plates can be driven by the driving mechanism to slide oppositely, the heat conducting plate is unfolded, the contact area with air is increased through the staggered first plate body, second plate body and third plate body, and the heat dissipation effect on the oil tank is improved; when the temperature in the oil tank is reduced to the normal temperature, the two protection plates can be driven to slide relatively, so that the first plate body, the second plate body and th