1.

A 500 kVA, 2300 V, 3-phase star connected alternator has a full load armature resistance drop of 50 V per phase and an effective reactance drop of 500 V per phase. The percentage regulation at UPF is

A. 1.05
B. 10.5
C. 21.8
D. 28.7
Answer» C. 21.8


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