Loss and Efficiency of Induction MotorsLoss type Fixed loss Variable lossFixed loss definitionFixed loss is the loss that remains unchanged during normal operation, including iron loss, mechanical loss, brush friction loss.Loss of iron or coreIron loss or core loss is divided into hysteresis loss and eddy current loss. By laminating the core, eddy current losses can be reduced, thereby increasing resistance and reducing eddy currents. The use of high-grade silicon steel minimizes hysteresis loss