A single-phase, six-pole, capacitor start, 120V/60Hz induction motor, has the following parameters: R1=1.48Ω R2=3.2 Ω X1=2.05 Ω X2=1.6 Ω The core losses are negligible, while the friction and windage losses are constant Pf,wi=20W. The motor is operating at the rated voltage and frequency with its starting winding open, and the motor’s slip is 4.5%. Calculate: a) Stator current and power factor of the machine b) Developed electromechanical torque and the load torque c) The motor efficiency

A single-phase, six-pole, capacitor start, 120V/60Hz induction motor, has the following parameters: R1=1.48Ω R2=3.2 Ω X1=2.05 Ω X2=1.6 Ω The core losses are negligible, while the friction and windage losses are constant Pf,wi=20W. The motor is operating at the rated voltage and frequency with its starting winding open, and the motor’s slip is 4.5%. Calculate: a) Stator current and power factor of the machine b) Developed electromechanical torque and the load torque c) The motor efficiency

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter8: Basic Electric Motors

Section: Chapter Questions

Problem 28RQ: What are the advantages and disadvantages of using the following types of motors? shaded-pole...

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