How is transformer oil capacity calculated?

Transformer oil capacity is calculated based on the transformer’s design and cooling requirements. It typically involves determining the volume of oil needed to adequately insulate and cool the windings and core. This is done by considering the transformer’s rated power, dimensions, and the specific heat capacity of the oil. The formula often used is: Oil Volume (liters) = (Transformer Power Rating (kVA) × Cooling Factor) / Oil Density (kg/L). This ensures optimal thermal performance and safety.