What is paraffin based transformer oil and how is it used in power transformers?

Paraffin based transformer oil is a type of insulating oil derived from refined petroleum, characterized by its high dielectric strength and thermal stability. In power transformers, paraffin based transformer oil is used to insulate and cool the transformer components, preventing overheating and ensuring efficient operation. Its chemical stability also helps to minimize oxidation and prolong the lifespan of the transformer.