1. Some tests are performed on a 3-phase, 380 V, 4-pole, 60 Hz, Y-connected induction machine, and the result is: Averag

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1 Some Tests Are Performed On A 3 Phase 380 V 4 Pole 60 Hz Y Connected Induction Machine And The Result Is Averag 1 (70.56 KiB) Viewed 41 times

1. Some tests are performed on a 3-phase, 380 V, 4-pole, 60 Hz, Y-connected induction machine, and the result is: Average de resistance per stator phase: 3.62 Blocked-rotor test: Pin-84 W, Vin-25.748 V, Jin-2 A, f-15 Hz No-load test: Pin-102.7 W, Vin 380 V, Iin=-0.5 A, f-60 Hz Under rated operation, this motor is running at a slip of 0.75% and the total rotational power loss is 30 W. Assuming X₁=X₂', determine (a) the equivalent circuit parameters of this machine in its general form (draw the circuit) (8%) (b) the starting current at stator winding (6%) (c) the mechanical torque output at rated condition. (7%)