What are the technical aspects of transformer oil chemical composition?

The technical aspects of transformer oil chemical composition primarily include its hydrocarbon structure, which is derived from refined mineral oils. Key components are alkanes, cycloalkanes, and aromatic hydrocarbons, with low levels of polar compounds. The oil must have high dielectric strength, low viscosity, and excellent thermal stability. Additives may be included to enhance oxidation resistance and inhibit sludge formation, ensuring optimal performance and longevity of the transformer.