Transformer IS MAINLY COMPOSED OF CORE, winding, oil tank, cooling device, protection device and voltage regulating device and other core components, ITS core function is to ACHIEVE voltage transformation, current transformation and electrical energy transmission through electromagnetic induction .
It is made by laminating silicon steel sheets, with a thickness usually of less than 0.35mm, and coated with insulating varnish to reduce eddy current losses.
The magnetic circuit that constitutes the transformer provides a low magnetic resistance channel to enhance magnetic flux coupling while supporting the winding structure.
It is divided into primary (input) and secondary (output) windings, and is wound with insulated copper wire or aluminum wire.
Electrical energy transmission and voltage transformation are achieved through electromagnetic induction. High-voltage windings are usually placed on the outside to meet insulation requirements.
Fuel tank and cooling system
The oil tank holds the oil from the transformer body and the transformer. In oil-immersed transformers, the oil has both insulation and heat dissipation functions.
Cooling devices (such as radiators and fans) lower the temperature through oil circulation or forced air cooling to ensure stable operation.
Protective device
Gas relay : Detects the gas produced by an internal fault and triggers protection action.
Storage tank (oil pillow) : Compensates for volume change of oil, isolates air to delay deterioration of oil.
Pressure regulating device
The tap changer (loaded or unloaded) regulates the output voltage by adjusting the turns ratio of the winding to meet the demands of the power grid.
