What is a transformer?
Transformers are usually of two types dry type transformers and oil immersed transformers,oil immersed transformers have three pairs of windings inside but in actual transformer its three pairs of windings are one large unit sharing a core. In this setup the coils are usually concentric with each other. The lower voltage coils are arranged on the inside, while the higher voltage coils are on the outside. Each set of coils is insulated from each other. The power transmission is only completed during the magnetic field induction process. A common way to connect the windings of the transformer is to use Y type on the high voltage side. Connection, each coil terminal on the high-voltage side is connected to the terminals of the other two coils to form a star, while the low-voltage side uses a triangle connection. Each coil terminal on the low-voltage side is only connected to the terminals of the adjacent coils to form a triangle, but In a step-down transformer, on the contrary, the high voltage is connected in a triangle and the low voltage is connected in a Y shape.
Is there oil in the transformer?
Transformers certainly have oil inside them, and transformers are one of the most commonly used types of transformers. During the manufacturing process, we soak the transformer in insulating oil, which can play a role in cooling the insulation. Because when the transformer is operating at full load, the resistance and hysteresis losses generated by the transformer will be converted into heat energy, causing the temperature to rise and the insulation to The oil can transfer this heat to the oil on the shell. Large transformers are equipped with cooling fans for cooling. The top of the transformer is the auxiliary tank, which functions like a auxiliary refrigerator. When the oil temperature rises, it will expand to the auxiliary oil tank leakage. The pressure from the fuel tank connecting pipe to the bottom bed is the pressure relief breathing device. There is filter material inside that can filter out the air moisture in the inhalation and extend the service life of the transformer.
Dry-type transformers and oil-immersed transformers each have their own advantages.
In summary, while dry-type transformers offer advantages in terms of safety and environmental friendliness, oil-immersed transformers excel in efficiency, compactness, and longevity. The choice between the two ultimately depends on the specific needs and priorities of the application.
Dry and oil-immersed options, you are welcome to ask us YRO questions!
