Question: A generator is synchronized to an infinite bus. The generator field current iF = 1000A at synchronization. = 1 00 and Xs =1.5 pu. With

A generator is synchronized to an infinite bus. The generator field current iF = 1000A at synchronization. = 1 00 and Xs =1.5 pu. With iF unchanged, the steam valves at the turbine are adjusted until PG = 0.2 pu. (a) Find the armature current Ia; (b) With PG unchanged, iF is increased to 1600A. Calculate Ia Note: At synchronization, the terminal voltage and frequency of the generator are controlled by the infinity bus to which it is connected

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