Question

14. An & pole 50 llz. three phase induction motor runs at a speed of 720 rpm when
delivering full load torque. lis stand still rotor resistance and reactance are 0.1 ohm
and 0 6 ohm per plase respectively An additional resistance oro s ohm per phase is
inserted in the motor circuit lo control the speed Calculate the speed at which the
motor runs now with full load torque remaining the same. (Ans: 570 mm)​

Answer 1

Answer:

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