What are the technical considerations for oil in a transformer is used for?

The technical considerations for oil in a transformer include its role as an insulator and coolant. Transformer oil must have high dielectric strength to prevent electrical breakdown and low viscosity for effective heat transfer. Additionally, it should resist oxidation and have a high flash point to ensure safety. The oil’s chemical stability and moisture content are also critical, as they affect the transformer’s longevity and performance. Regular testing for these properties is essential for optimal operation.