Question: a 3 - phase, 4 - pole, Y - connected induction motor is supplied with 3 8 0 V and 5 0 Hz frequency. When

a 3-phase, 4-pole, Y-connected induction motor is supplied with 380 V and 50 Hz frequency. When the motor is fully loaded its mechanical power is 12 kW, its line current is 25 A, power factor 0.8 and it rotates at 1400 rpm.

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