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A three-phase, 50 Hz, alternator has an inertia constant of 4pu/s. Calculate the following: i) Angular...

A three-phase, 50 Hz, alternator has an inertia constant of 4pu/s. Calculate the
following:
i) Angular speed
ii) Accelerating power if the mechanical power is 1pu and electrical power
is also 1pu.
iii)Accelerating power when a short circuit fault occurs at the generator
terminals
iv) Angular momentum
v) Load angle 6 cycles after the occurrence of the fault if the initial load
angle is 18⁰.

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