A 3 phase, 280 V, 60 Hz, 20 hp, four-pole induction motor hasthe following equivalent circuit parameters. R1=0.120 R2=0.10 X1 = X2 = 0.250 Xm = 100. The rotational loss is 400W.For 5% slip, using full equivalent circuit calculate.A.The motor speed in rpm and radians per secB. The motor current c) the stator copper loss D. The air gappower E) the rotor copper lossF) the shaft power G) the developed torque and shaft torque.H) efficiency

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A 3 phase, 280 V, 60 Hz, 20 hp, four-pole induction motor has the following equivalent circuit parameters. R1=0.120 R2=0. 10 X1 = X2 = 0.250 Xm = 100. The rotational loss is 40OW. For 5% slip, using full equivalent circuit calculate. %3D %3D » A.The motor speed in rpm and radians per sec B. The motor current c) the stator copper loss D. The air gap

A 3 phase, 280 V, 60 Hz, 20 hp, four-pole induction motor has the following equivalent circuit parameters. R1=0.120 R2=0. 10 X1 = X2 = 0.250 Xm = 100. The rotational loss is 40OW. For 5% slip, using full equivalent circuit calculate. %3D %3D » A.The motor speed in rpm and radians per sec B. The motor current c) the stator copper loss D. The air gap

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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Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

A 3 phase, 280 V, 60 Hz, 20 hp, four-pole induction motor has
the following equivalent circuit parameters. R1=0.120 R2=0.
10 X1 = X2 = 0.250 Xm = 100. The rotational loss is 400W.
For 5% slip, using full equivalent circuit calculate.
A.The motor speed in rpm and radians per sec
B. The motor current c) the stator copper loss D. The air gap
power E) the rotor copper loss
F) the shaft power G) the developed torque and shaft torque.
H) efficiency

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