what is transformer oil?

Transformer oil, also known as insulating oil, is a specialized mineral oil used in electrical transformers and other electrical equipment. Its primary functions are to insulate and cool the transformer, preventing overheating and electrical breakdown. Transformer oil has excellent dielectric properties, which help maintain electrical insulation, and it also serves as a medium for heat dissipation. Additionally, it protects the internal components from moisture and oxidation, ensuring reliable operation and longevity of the transformer.