Difference between Squirrel Cage and Slip Ring Induction Motor

The difference between between Squirrel Cage and Phase Wound Rotor Induction motors is given below.

 Sl. No: ParticularsSquirrel cage Induction MotorSlip ring induction motor
1ConstructionMore simpleNot so simple
2CostCheaperCostly
3EfficiencyHigherLesser than cage
4Starting TorqueLowHigh
5Maintenance costVery lessMore
6Speed controlDifficultEasy
7Rotor windingCopper bars3 phase winding
8Copper lossLessMore
9ApplicationPopularNot like Squirrel cage

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