Q1. The shaft power output of 3-phase, 4 poles, 50Hz induction motor is 32 KW at 1420 rpm, efficiency 85%, stator copper losses are 750 W, stator core losses are 1020 W, Friction and amount losses amount about 1.5% of shaft power output, calculate: a) Slip speed b) Mechanical power developed c) Rotor input power or transmitted power. d) Total stator losses e) Stator input power f) Shaft speed if the slip is doubled g) Internal torque h) Load torque i) Input power j) Total losses
Q1. The shaft power output of 3-phase, 4 poles, 50Hz induction motor is 32 KW at 1420 rpm, efficiency 85%, stator copper losses are 750 W, stator core losses are 1020 W, Friction and amount losses amount about 1.5% of shaft power output, calculate: a) Slip speed b) Mechanical power developed c) Rotor input power or transmitted power. d) Total stator losses e) Stator input power f) Shaft speed if the slip is doubled g) Internal torque h) Load torque i) Input power j) Total losses
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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![Q1. The shaft power output of 3-phase, 4 poles, 50Hz induction motor is 32 KW at
1420 rpm, efficiency 85%, stator copper losses are 750 W, stator core losses are
1020 W, Friction and amount losses amount about 1.5% of shaft power output,
calculate:
a) Slip speed
b) Mechanical power developed
c) Rotor input power or transmitted power.
d) Total stator losses
e) Stator input power
f) Shaft speed if the slip is doubled
g) Internal torque
h) Load torque
i) Input power
j) Total losses](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7561eef4-fbcd-45a7-83a7-aad4527f7b99%2Fc605ce5d-8c98-4d4f-9201-67dcc41fb6de%2Fzd9bh8h_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1. The shaft power output of 3-phase, 4 poles, 50Hz induction motor is 32 KW at
1420 rpm, efficiency 85%, stator copper losses are 750 W, stator core losses are
1020 W, Friction and amount losses amount about 1.5% of shaft power output,
calculate:
a) Slip speed
b) Mechanical power developed
c) Rotor input power or transmitted power.
d) Total stator losses
e) Stator input power
f) Shaft speed if the slip is doubled
g) Internal torque
h) Load torque
i) Input power
j) Total losses
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