What are the properties of mineral oil for transformers?

Mineral oil for transformers possesses several key properties essential for effective operation. It has excellent dielectric strength, ensuring electrical insulation and preventing arcing. Its high thermal conductivity facilitates efficient heat dissipation, while a wide temperature range allows for stable performance under varying conditions. Additionally, mineral oil has good oxidation stability, which prolongs its lifespan and reduces the formation of harmful sludge. These properties make mineral oil a preferred choice for transformer insulation and cooling.