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If two pole 50 Hz, 50 MVA turbogenerator has a moment of inertia of 8.6 × 10³ kg-m², then inretia constants H in MJ/MVA will be __________
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- 8.48
- 84.8
- 848
- 0.848
Correct Option: C
| Kinetic energy stored = | jω² | |
| 2 |
| = | × (8.6 × 10³) × |  |  | ² | = 424.4 MJ. | ||
| 2 | 60 |
| H = | ||
| MVA rating |
| = | = 8.48 MJ/MVA. | |
| 50 |
