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Question

A 100 MVA, 11 kV, 3-phase, 50 Hz, 8 pole synchronous generator has an inertia constant H equal to 4 MJ/MVA. The stored energy in the rotor of the generator at synchrounous speed will be

A
100 MJ
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B
400 MJ
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C
800 MJ
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D
12.5 MJ
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Solution

The correct option is B 400 MJ
Energy stored =GH=100×4=400MJ

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