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Swing Equation; Multimachine System; Machines Swinging Coherently; Machines Swinging Non-Coherently

A 100 MVA, 11...

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 $= G H = 100 \times 4 = 400 M J$

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