MCQOPTIONS
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| 1. |
A 75 kW, three-phase star-connected 50 Hz, 440 V cylindrical rotor synchronous motor operates at the rated condition with 0.8 power factor leading. The motor efficiency excluding field and starter losses is 95% and Xs = 2.5 Ω. Calculate the mechanical power developed. |
| A. | 780 W |
| B. | 7 KW |
| C. | 78950 W |
| D. | 79 W |
| Answer» D. 79 W | |