A three-phase 400 V, 50 Hz, 6-pole, 960 rpm star-connected induction motor has the following parameters per phase referred to the stator; R1 = 0.4 2, R2 = 0.2 2, X1 = X2 = 1.5 Q, Xm = 30 2 The motor is controlled by variable frequency control at a constant flux of rated value. Determine; a) The motor speed and the stator current at half of rated torque and 25 Hz b) By assuming the speed-torque curve to be straight line, solve for part (a), for s
A three-phase 400 V, 50 Hz, 6-pole, 960 rpm star-connected induction motor has the following parameters per phase referred to the stator; R1 = 0.4 2, R2 = 0.2 2, X1 = X2 = 1.5 Q, Xm = 30 2 The motor is controlled by variable frequency control at a constant flux of rated value. Determine; a) The motor speed and the stator current at half of rated torque and 25 Hz b) By assuming the speed-torque curve to be straight line, solve for part (a), for s
Introductory Circuit Analysis (13th Edition)
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Hi, i dont mind receiving handwritten answer. Just doing homework, thanks in advance.
Transcribed Image Text:A three-phase 400 V, 50 Hz, 6-pole, 960 rpm star-connected induction motor has the
following parameters per phase referred to the stator;
R1 = 0.4 2, R2 = 0.2 2, X1 = X2 = 1.5 Q, Xm = 30 2
The motor is controlled by variable frequency control at a constant flux of rated value.
Determine;
a) The motor speed and the stator current at half of rated torque and 25 Hz
b) By assuming the speed-torque curve to be straight line, solve for part (a), for s < Sm
c) The stator frequency, stator current and voltage at the rated braking torque and 800
rpm speed.
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