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1. |
A 500MW, 21kV, 50Hz, 3-phase, 2-pole synchronous generator having a rated p.f. =0.9, has a moment of inertia of 27.5 x 103 kg-m2. The inertia constant (H) will be |
A. | 2.44 s |
B. | 2.71s |
C. | 4.88s |
D. | 5.42s |
Answer» B. 2.71s | |