shaft torque; and,
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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Question
Answer d and e
![A three-phase, 230 v, 30 hp, 60 Hz, six-pole induction motor is operating with a shaft load that
requires 21.3 kW to cross the air gap to the rotor. Rotor copper loss is 1.05 kW, and mechanical and
stray load losses are 300 W. Determine:
shaft speed;
mechanical power developed;
developed torque;
shaft torque; and,
percent of rated hp the machine is required to deliver to the load.
a.
b.
C.
d.
e.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0a07d981-9c73-408c-899c-ecac19cc1745%2F725a67f8-6bd2-46e6-be11-33b328fb5a49%2Fxu7sut4_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A three-phase, 230 v, 30 hp, 60 Hz, six-pole induction motor is operating with a shaft load that
requires 21.3 kW to cross the air gap to the rotor. Rotor copper loss is 1.05 kW, and mechanical and
stray load losses are 300 W. Determine:
shaft speed;
mechanical power developed;
developed torque;
shaft torque; and,
percent of rated hp the machine is required to deliver to the load.
a.
b.
C.
d.
e.
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