The cooling system uses a closed circulation of oil and water,water and air.
The dielectric loss in the cooling cycle system is supplemented bywater-replenishing tank.
The transformer oil enters the oil-water exchanger from the upper oil inlet pipe driven by the oil pump. After exchange with the medium anti-freezing liquid, the oil temperature is lowered and then enters the transformer from the lower oil outlet pipe.
The exchanged high-temperature medium anti-freeze liquid is driven by the water pump into the radiator copper tube of the roof by the water outlet pipe. Under the cooling of the fan, it goes through the copper tube and the fins to exchange heat with the air. The cooled medium enters into oil-water cooler tubes through the water outlet pipe to exchange with the transformer hot oil again.