CO2 12. A 1000 kVA, 3000V, 60 Hz, 3phase, Y-connected alternator has an CO3 armature effective resistance of 0.20 ohm. A field current of 40A CO4 produces a short circuit of 2O0A and an open circuit emf of 1040V between lines. Determine the full load percent regulation at 0.80 lagging power factor. A. 24.3% C. 26.5% B. 18.7% P. 13.5%

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12

A 1000 kVA, 3000V, 60 Hz, 3phase, Y-connected alternator has an
armature effective resistance of 0.20 ohm. A field current of 40A
CO2
12.
CO3
CO4
produces a short circuit of 200A and an open circuit emf of 1040V
between lines. Determine the full load percent regulation at 0.80
lagging power factor.
A. 24.3%
C. 26.5%
B. 18.7%
D. 13.5%
Transcribed Image Text:A 1000 kVA, 3000V, 60 Hz, 3phase, Y-connected alternator has an armature effective resistance of 0.20 ohm. A field current of 40A CO2 12. CO3 CO4 produces a short circuit of 200A and an open circuit emf of 1040V between lines. Determine the full load percent regulation at 0.80 lagging power factor. A. 24.3% C. 26.5% B. 18.7% D. 13.5%
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