DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is
It's power factor is higherIt has a higher efficiencyIt can be started with the help of rotor resistancesIt is suitable for higher speeds
slip ring motor have high starting torque compare to squirrel cage motor and have good speed control
also have high over loading capacity, smooth acceleration under heavy loads.