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| 1. |
An ac induction motor is used for a speed control application. It is driven from an inverter with a constant V/f control. The motor name-plate details are as follows : V = 415 V, Ph = 3, f = 50 Hz, N = 2850 rpm The motor is run with the inverter output frequency set at 40 Hz, and with half the rated slip. The running speed of the motor is |
| A. | 2400 rpm |
| B. | 2280 rpm |
| C. | 2340 rpm |
| D. | 2790 rpm |
| Answer» D. 2790 rpm | |