A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y 4 Wound R=0.552 R= 0.252 XI = 1.20 2 X2= 0.40 2 XM= 35.0 Q 3 % 250 W 150 W Slip Core losses Friction and windage losses Stray losses 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. c) The line current. d) The stator copper loss and air-gap power. e) The converted power and output power. The efficiency of motor at full load conditions. g) The induced and load torque.
A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt system. Determine: Table Q4(a): Specification of the induction motor Line voltage Operation frequency Connection type No. of pole Rotor type Per phase impedance (refer to stator circuit) 415 V 50 Hz Y 4 Wound R=0.552 R= 0.252 XI = 1.20 2 X2= 0.40 2 XM= 35.0 Q 3 % 250 W 150 W Slip Core losses Friction and windage losses Stray losses 80 W (a) Sketch an equivalent circuit of the induction motor. (b) The stator speed, rotor speed and frequency of rotor. c) The line current. d) The stator copper loss and air-gap power. e) The converted power and output power. The efficiency of motor at full load conditions. g) The induced and load torque.
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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