Q1) A 460-V, 25-hp, 60-Hz, four-pole, Y-connected induction motor has the following impdances in ohms per phase referred to the stator circuit: R1 = 0.641 Q, X1 = 1.106 N, R2'=0.332 N, X2' = 0.464 2, Xo = 26..3 Q The total rotational losses are 1100 Wand are assumed to be constant. The core loss is Jumped in with the rotational losses. For a rotor slip of 2.2 percent at the rated voltage and rated frequency, find the motor's 1) Input current & Efficiency 2) Sketch the complete torque-speed characteristic of an induction machine and indicate the three modes of oneration
Q1) A 460-V, 25-hp, 60-Hz, four-pole, Y-connected induction motor has the following impdances in ohms per phase referred to the stator circuit: R1 = 0.641 Q, X1 = 1.106 N, R2'=0.332 N, X2' = 0.464 2, Xo = 26..3 Q The total rotational losses are 1100 Wand are assumed to be constant. The core loss is Jumped in with the rotational losses. For a rotor slip of 2.2 percent at the rated voltage and rated frequency, find the motor's 1) Input current & Efficiency 2) Sketch the complete torque-speed characteristic of an induction machine and indicate the three modes of oneration
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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![Q1) A 460-V, 25-hp, 60-Hz, four-pole, Y-connected induction motor has the following impdances in
ohms per phase referred to the stator circuit:
R1 = 0.641 Q, X1 = 1.106 2, R2' = 0.332 2, X2' = 0.464 2, Xo = 26..3 Q
The total rotational losses are 1100 Wand are assumed to be constant. The core loss is Jumped in with the
rotational losses. For a rotor slip of 2.2 percent at the rated voltage and rated frequency, find the motor's
1) Input current & Efficiency
2) Sketch the complete torque-speed characteristic of an induction machine and indicate the three
modes of operation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7ba274bd-9585-4536-9a32-fc2dc5d77fc5%2F98de8d5f-dd9e-4acc-a803-bec511865658%2Fgokiax9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1) A 460-V, 25-hp, 60-Hz, four-pole, Y-connected induction motor has the following impdances in
ohms per phase referred to the stator circuit:
R1 = 0.641 Q, X1 = 1.106 2, R2' = 0.332 2, X2' = 0.464 2, Xo = 26..3 Q
The total rotational losses are 1100 Wand are assumed to be constant. The core loss is Jumped in with the
rotational losses. For a rotor slip of 2.2 percent at the rated voltage and rated frequency, find the motor's
1) Input current & Efficiency
2) Sketch the complete torque-speed characteristic of an induction machine and indicate the three
modes of operation.
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