Please answer all subparts for like either dislike is ready..Thanks.. (a)A4 pole, 380 V, 50 Hz, three-phase induction motor delivers an output power of 15kW when the motor induces a rotor e.m.f. at a frequency of 3 Hz. The total statorcopper loss and core loss is 600 W. If the rotational losses absorb a torque of 15Nm, evaluate(i)the slip,(ii) the motor speed in rev/min, and(iii) the motor input power.(b) A shunt D.C. motor is connected to a 200 V D.C. supply, and the motor draws anarmature current of 15 A at 200 rev/min. If the armature resistance is 0.5 2, evaluate(i)the back e.m.f. induced on armature,(ii) the mechanical power developed by the motor, and(iii) the motor speed in rev/min if the torque is reduced by 40 %.

In this question, We need to determine the slip, motor speed, and motor input power? And also…

(a) A4 pole, 380 V, 50 Hz, three-phase induction motor delivers an output power of 15 kW when the motor induces a rotor e.m.f. at a frequency of 3 Hz. The total stator copper loss and core loss is 600 W. If the rotational losses absorb a torque of 15 Nm, evaluate (i) the slip, (ii) the motor speced in rev/min, and (iii) the motor input power. (b) A shunt D.C. motor is connected to a 200 V D.C. supply, and the motor draws an armature current of 15 A at 200 rev/min. If the armature resistance is 0.5 2, evaluate (i) the back e.m.f. induced on armature, (ii) the mechanical power developed by the motor, and (iii) the motor speed in rev/min if the torque is reduced by 40 %.

(a) A4 pole, 380 V, 50 Hz, three-phase induction motor delivers an output power of 15 kW when the motor induces a rotor e.m.f. at a frequency of 3 Hz. The total stator copper loss and core loss is 600 W. If the rotational losses absorb a torque of 15 Nm, evaluate (i) the slip, (ii) the motor speced in rev/min, and (iii) the motor input power. (b) A shunt D.C. motor is connected to a 200 V D.C. supply, and the motor draws an armature current of 15 A at 200 rev/min. If the armature resistance is 0.5 2, evaluate (i) the back e.m.f. induced on armature, (ii) the mechanical power developed by the motor, and (iii) the motor speed in rev/min if the torque is reduced by 40 %.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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