Question: A 2 0 8 V four - pole, 6 0 H z , Y - connected wound rotor induction motor is rated at 3 0

A 208 V four-pole, 60Hz,Y-connected wound rotor induction motor is rated at 30 hp . Its equivalent circuit components are:
R1=0.100R2=0.070
x1=0.210x2=0.210
Pmech=500WPmisc~~0
For a slip of 0.05 find:
a. The line current IL(5 points)
b. The stator copper losses PSCL(5 points)
c. The air-gap power PAG(5 points)
d. The power converted from electrical to mechanical form Pconv(5 points)
e. The induced torque ind(5 points)
f. The load torque load(5 points)
g. The overall machine efficiency (5 points)
h. The motor speed in revolutions per minute and radians per second (5 points)
i. What is the slip at the pullout torque? (10 points)
j. What is the pullout torque of this motor? (10 points)
A 2 0 8 V four - pole, 6 0 H z , Y - connected

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