A 3-phase, 2200-V, delta-connected, 12-pole 60-Hz induction motor runs at no load with rated voltage and frequency impressed and draws a line current of 20 Amp. and an input power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor resistance r2 is 0.2 Ohm per phase. Also, x1+x2'=2.0 Q per phase. The motor runs at a slip of 2% when it is delivering power to a load. For this condition, determine a) The developed torque. b) The input line current and power factor.
A 3-phase, 2200-V, delta-connected, 12-pole 60-Hz induction motor runs at no load with rated voltage and frequency impressed and draws a line current of 20 Amp. and an input power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor resistance r2 is 0.2 Ohm per phase. Also, x1+x2'=2.0 Q per phase. The motor runs at a slip of 2% when it is delivering power to a load. For this condition, determine a) The developed torque. b) The input line current and power factor.
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
Section: Chapter Questions
Problem 6RQ: Name three factors that determine the torque produced by an induction motor.
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electrical Machines III
![A 3-phase, 2200-V, delta-connected, 12-pole 60-Hz induction motor runs at no load with
rated voltage and frequency impressed and draws a line current of 20 Amp. and an input
power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor
resistance r2 is 0.2 Ohm per phase. Also, x1+x2'=2.0 Q per phase. The motor runs at a slip of
2% when it is delivering power to a load. For this condition, determine
a) The developed torque.
b) The input line current and power factor.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fca5617c9-3835-4da8-808b-4d8d7bdee018%2F5871fd38-f173-4d8f-b519-d265d0dec6a8%2Ffjj5k3r_processed.png&w=3840&q=75)
Transcribed Image Text:A 3-phase, 2200-V, delta-connected, 12-pole 60-Hz induction motor runs at no load with
rated voltage and frequency impressed and draws a line current of 20 Amp. and an input
power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor
resistance r2 is 0.2 Ohm per phase. Also, x1+x2'=2.0 Q per phase. The motor runs at a slip of
2% when it is delivering power to a load. For this condition, determine
a) The developed torque.
b) The input line current and power factor.
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