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1. |
A 50 Hz four pole turbo-generator rated 100 MVA, 11 kV has an inertia constant of 8 MJ/MVA. If the mechanical input is suddenly raised to 80 MW for an electrical load of 50MW, then the rotor acceleration is ____________ |
A. | 337.5 |
B. | 3.375 |
C. | 457.5 |
D. | 4.57 |
Answer» B. 3.375 | |