What are the characteristics of transformer oil?

Transformer oil characteristics include excellent dielectric strength, low viscosity, high flash point, and thermal stability, making it an ideal insulating and cooling medium for electrical transformers. It exhibits good resistance to oxidation, ensuring longevity and reliability in electrical applications. Additionally, transformer oil has minimal water content and low solubility and is typically highly refined mineral oil that enhances its performance by preventing electrical breakdown. The chemical composition often includes alkanes and aromatics, contributing to its effectiveness in preventing moisture ingress and corrosion.