A 30 star connected 6-pole 60 Hz induction motor draws 16.8A at a power factor of 80% lagging with the following parameters of per phase approximate equivalent circuit referred to the stator. X = 13.25 Q R₁ = 0.24 0 R₂ = 0.14 0 X, = 0.56 Ω Χ, = 0.28 Ω The total friction, windage, and core losses may be assumed to be constant at 450W. For a slip of 2.5% and when the motor is operated at the rated voltage and frequency, calculate i) The speed in rpm ii) The rotor current iii) The copper losses iv) The rotor input hower
A 30 star connected 6-pole 60 Hz induction motor draws 16.8A at a power factor of 80% lagging with the following parameters of per phase approximate equivalent circuit referred to the stator. X = 13.25 Q R₁ = 0.24 0 R₂ = 0.14 0 X, = 0.56 Ω Χ, = 0.28 Ω The total friction, windage, and core losses may be assumed to be constant at 450W. For a slip of 2.5% and when the motor is operated at the rated voltage and frequency, calculate i) The speed in rpm ii) The rotor current iii) The copper losses iv) The rotor input hower
Chapter39: Synchronous Motor Operation
Section: Chapter Questions
Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...
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