Enter your Primary Winding Current and Primary Winding Resistance alongside your Secondary Winding Current and Secondary Winding Resistance into the Transformer Copper Loss Calculator to find your Total Copper Loss, broken down into Primary Winding Loss and Secondary Winding Loss.
Total Copper Loss
--
Primary Winding Loss
--
Secondary Winding Loss
--
Copper loss, also known as I²R loss, is the heat produced by electrical current flowing through the resistance of transformer windings. It varies with the square of the current and increases with load.
Copper loss is calculated using the formula: Loss = I²R, where I is the winding current and R is the winding resistance. Total loss is the sum of primary and secondary winding losses.
Copper losses are affected by winding current, resistance of conductors, temperature, and load conditions. Higher currents and resistance result in greater losses.
Copper losses can be reduced by using larger conductor cross-sections to lower resistance, optimizing winding design, using high-conductivity materials, and operating at appropriate load levels.
Core losses occur in the transformer core due to hysteresis and eddy currents, remaining constant regardless of load. Copper losses occur in windings and vary with the square of the load current.
Copper resistance increases with temperature, following the temperature coefficient of resistance. As transformers heat up during operation, winding resistance increases, leading to higher copper losses.
Copper losses reduce transformer efficiency by converting electrical energy to heat. Higher copper losses mean more energy waste and lower overall efficiency, especially at higher loads.