The generating unit in .1 is initially operating at pmp:u:
Chapter , Problem 11.4(choose chapter or problem)
The generating unit in 11.1 is initially operating at pmp:u: _ pep:u: _ 0:7 per unit, o _ osyn, and d _ 12 when a fault reduces the generator electrical power output by 60%. Determine the power angle d five cycles after the fault commences. Assume that the accelerating power remains constant during the fault. Also assume that op:u:t_ _ 1:0 in the swing equation.
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