What are the technical aspects of mineral transformer oil?

Mineral transformer oil is a refined petroleum product used as an insulating and cooling medium in power transformers. Key technical aspects include its dielectric strength, which ensures electrical insulation, and its thermal conductivity, which aids in heat dissipation. Additionally, mineral oil has a high flash point for safety, low viscosity for efficient circulation, and good oxidation stability to prolong service life. Its chemical composition also influences its performance under varying temperature and electrical stress conditions.