What is mineral based transformer oil used for in power transformers?

Mineral based transformer oil is used for insulation and cooling in power transformers. It provides electrical insulation between conductive parts and dissipates heat generated during operation. The oil’s high dielectric strength ensures safe operation, while its thermal conductivity aids in maintaining optimal temperatures. Additionally, mineral based transformer oil helps to prevent oxidation and degradation of transformer components, thereby enhancing the longevity and reliability of power transformers.