torque. Ans[40.5 N.m, 63.6 N.m, 1333r.p.m] The resistance and standstill reactance of each phase of a 3-phase induction motor with star- connected rotor are 0.062 and 0.42 respectively. The full-load slip is 4% . Calculate the resistance per phase of a star-connected rheostat which, when connected to the rotor circuit will give a pull- out torque at one haif of the fuii ioad speed. What is then the power factor? Ans[0.1482,0.707Lag] A 3-phase induction motor has a 4-pole star-connected ototr
torque. Ans[40.5 N.m, 63.6 N.m, 1333r.p.m] The resistance and standstill reactance of each phase of a 3-phase induction motor with star- connected rotor are 0.062 and 0.42 respectively. The full-load slip is 4% . Calculate the resistance per phase of a star-connected rheostat which, when connected to the rotor circuit will give a pull- out torque at one haif of the fuii ioad speed. What is then the power factor? Ans[0.1482,0.707Lag] A 3-phase induction motor has a 4-pole star-connected ototr
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.
Related questions
Question
![ulate (1) torque at 4 % slip (ii)
LUPQUE (iii) speed at maximum torque.
Ans[40.5 N.m, 63.6 N.m, 1333r.p.m]
Q12/ The resistance and standstill reactance of each phase of a 3-phase induction motor with star-
connected rotor are 0.062 and 0.42 respectively. The full-load slip is 4% . Calculate the resistance
per phase of a star-connected rheostat which, when connected to the rotor circuit will give a pull-
out torque at one haif of the fuii ioad speed. What is then the power factor?
Ans[0.1482,0.707Lag]
A 3-phase induction motor has a 4-polę star-connected](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a65deb5-5633-4f8a-86e6-a3ee5e7292a8%2Fc0f9c610-9eda-4a23-b38a-39830264e2e0%2F8lfslfk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:ulate (1) torque at 4 % slip (ii)
LUPQUE (iii) speed at maximum torque.
Ans[40.5 N.m, 63.6 N.m, 1333r.p.m]
Q12/ The resistance and standstill reactance of each phase of a 3-phase induction motor with star-
connected rotor are 0.062 and 0.42 respectively. The full-load slip is 4% . Calculate the resistance
per phase of a star-connected rheostat which, when connected to the rotor circuit will give a pull-
out torque at one haif of the fuii ioad speed. What is then the power factor?
Ans[0.1482,0.707Lag]
A 3-phase induction motor has a 4-polę star-connected
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