1.Determine the kinetic energy storedby a 250-MVA, 60-Hz, two-pole synchronous generator with an inertia constant Hof 5.4 MJ/MVA. Assume the machine is running steadily at synchronous speed witha shaft input of 331,100 hp. The electrical power developed suddenly changesfrom its normal value to a value of 200 MW. Determine the acceleration ordeceleration of the rotor. If the acceleration computed for the generator isconstant for a period of 9 cycles, determine the change in the power angle inthat period and the rpm at the end of 9 cycles.
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