What are the technical considerations for what is the use of oil in transformer?

The use of oil in transformers serves multiple technical purposes. Primarily, transformer oil acts as an insulator, preventing electrical discharge and enhancing dielectric strength. Additionally, it facilitates heat dissipation, ensuring efficient thermal management. The oil also provides protection against moisture and contaminants, which can degrade performance. Furthermore, the oil’s chemical stability is crucial for long-term operation, as it minimizes the risk of oxidation and sludge formation, thereby extending the transformer’s lifespan.