The coils in oil-type transformers and dry-type transformers serve the same fundamental purpose of conducting and transforming electrical energy, but there are differences in their construction due to the different cooling methods employed.
Oil-Type Transformers:
In oil-type transformers, the coils are typically immersed in transformer oil, which serves as both an electrical insulator and a coolant.
The coils in oil-type transformers are often made of copper or aluminum conductors wound around a core made of laminated steel.
The insulation system for the coils in oil-type transformers must be designed to withstand the immersion in oil and the operating temperatures experienced during operation.
Dry-Type Transformers:
In dry-type transformers, the coils are exposed to air for cooling instead of being immersed in oil.
The coils in dry-type transformers are also typically made of copper or aluminum conductors wound around a core made of laminated steel.
However, the insulation system for the coils in dry-type transformers may be different from that used in oil-type transformers since it does not need to withstand immersion in oil.
While the basic construction of the coils in both types of transformers may be similar, there are differences in the insulation systems and the overall design to accommodate the different cooling methods.
Although both have coils, there are differences
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