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categoryالهندسة الكهربائية schoolبكالوريوس event_available2026-07-15

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The results of no load and blocked rotor test on a 3 phase Y connected Machine A 40hp 60 HZ,460V induction motor with a rated current 57.8 are as are: No load test V = 460V locked rotor test DC Line to line voltage =36.2 V Vde=12V Input power =5664 W Input power-2573 W Ide=59A Input Current=32.7 Input Current-58 A Frequency 15HZ a) Stator resistance b) Rotational loss c) Starting torque for this machine d) Slip at Max torque (Smax) e) How much External resistance added (referred to stator) to R2 when the Smax at (d) is increased or decreased to 0.95

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