A three-phase, Y-connected, 220V (line-to-line), 7.5kw, 50HZ, 6-pole induction motor has the following parameters in N/phase referred to the stator side: R1 = 0.294, R2 = 0.144, X, = 0.503, X = 0.209, X, = 13.25 %3D R1 R'2 X2 R2 The motor is operated at rated voltage and frequency. If the machine operates at 2% slip and 400W

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A three-phase, Y-connected, 220V (line-to-line), 7.5kW, 50HZ, 6-pole induction motor has the
following parameters in 1/phase referred to the stator side:
R1 = 0.294, R2 = 0.144, X1 = 0.503, X2 = 0.209, X, = 13.25
R1
X1
R'2
X2
V:
R2
The motor is operated at rated voltage and frequency. If the machine operates at 2% slip and
mechanical windage and friction loss for the motor is 400w, determine the following:
Transcribed Image Text:A three-phase, Y-connected, 220V (line-to-line), 7.5kW, 50HZ, 6-pole induction motor has the following parameters in 1/phase referred to the stator side: R1 = 0.294, R2 = 0.144, X1 = 0.503, X2 = 0.209, X, = 13.25 R1 X1 R'2 X2 V: R2 The motor is operated at rated voltage and frequency. If the machine operates at 2% slip and mechanical windage and friction loss for the motor is 400w, determine the following:
i) Rotor speed
j) Output torque
k) Motor efficiency
Transcribed Image Text:i) Rotor speed j) Output torque k) Motor efficiency
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