Working principle of water-cooled transformer

Water cooled transformer is a type of transformer that uses water as a cooling medium. Its working principle is somewhat different from traditional air-cooled transformers.In water-cooled transformers, there are mainly two parts: the iron core and coil of the transformer, and the water-cooled system. The iron core and coil of the transformer are responsible for changing the magnitude of the voltage, while the water cooling system is responsible for heat dissipation.
Firstly, electrical energy enters the coil on one side of the transformer through the input line, passes through the winding of the coil, and generates a magnetic field in the iron core. This magnetic field induces a current in the coil on the other side. Due to the design of the transformer, there are more windings in the input coil than in the output coil, resulting in the output voltage being higher (or lower, depending on the design of the transformer) than the input voltage.
With the conversion of electrical energy, a certain amount of heat will be generated in the transformer. To prevent overheating, it is necessary to dissipate heat through a water cooling system. Water cooling systems typically include a water pressure system and a radiator. Cooling water enters the radiator from the water supply pipeline, passes through the copper pipes outside the transformer radiator, absorbs heat, and is then pumped back to the water supply pipeline. This cycle continuously absorbs and dissipates heat, keeping the temperature of the transformer within an appropriate range.
Compared with air-cooled transformers, water-cooled transformers have better heat dissipation effects. The cooling performance of water is better than that of air, so it can more effectively absorb the heat generated by transformers. In addition, water-cooled transformers can also adopt a closed heat dissipation system, which can effectively isolate dust and moisture in the environment and protect the normal operation of the transformer.
In general, water-cooled transformers use water as a cooling medium to dissipate the heat inside the transformer through a radiator, ensuring the normal operation of the transformer. Compared to air-cooled transformers, water-cooled transformers have better heat dissipation performance and are more suitable for transformer applications in high load and high temperature environments.