Speed, torque and current of 3-phase, 6 poles 50 Hz induction motor under nominal (full) load are 940 rpm, 150 Nm and 60 A, respectively. The starting current of the motor under nominal voltage is 300 A. Calculate; a) The starting torque b) If the star/delta starting technique is used fort his motor, then calculate the starting current and torque of the motor. Can you start this motor with 90 Nm load current? P.S. You can use the equation of; Tst 2 st * S Ta Is

Introductory Circuit Analysis (13th Edition)
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Speed, torque and current of 3-phase, 6 poles 50 Hz induction motor under
nominal (full) 1load are 940 rpm, 150 Nm and 60 A, respectively. The starting
current of the motor under nominal voltage is 300 A. Calculate;
a) The starting torque
b) If the star/delta starting technique is used fort his motor, then calculate
the starting current and torque of the motor.
Can you start this motor with 90 Nm load current?
P.S. You can use the equation of;
Ist
2
Ist
* S
Ta
Is
Transcribed Image Text:Speed, torque and current of 3-phase, 6 poles 50 Hz induction motor under nominal (full) 1load are 940 rpm, 150 Nm and 60 A, respectively. The starting current of the motor under nominal voltage is 300 A. Calculate; a) The starting torque b) If the star/delta starting technique is used fort his motor, then calculate the starting current and torque of the motor. Can you start this motor with 90 Nm load current? P.S. You can use the equation of; Ist 2 Ist * S Ta Is
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