Neglecting copper loss in no load test and core loss in Blocked Rotor test, estimate motor's full load efficiency.
Neglecting copper loss in no load test and core loss in Blocked Rotor test, estimate motor's full load efficiency.
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
A 3 phase, 10 kW, 400 V, 4 pole, 50 Hz, star connected induction motor draws 20 A on full load. Its
no load and blocked rotor test data are given below:
No Load test: 400V 6 A 1002 W
Blocked Rotor test: 90 V 15 A/62 W
Neglecting copper loss in no load test and core loss in Blocked Rotor test, estimate motor's full
load efficiency.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcf49f727-2862-4b67-a1bc-178abe95d7f9%2Ff634c9eb-f540-46b2-9e43-d6154337ab07%2Fvwanezf_processed.png&w=3840&q=75)
Transcribed Image Text:Question
A 3 phase, 10 kW, 400 V, 4 pole, 50 Hz, star connected induction motor draws 20 A on full load. Its
no load and blocked rotor test data are given below:
No Load test: 400V 6 A 1002 W
Blocked Rotor test: 90 V 15 A/62 W
Neglecting copper loss in no load test and core loss in Blocked Rotor test, estimate motor's full
load efficiency.
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