5. A 3-phase, 50 Hz, star - connected, 2000 - KVA, 2300-V alternator gives a short circuit current of 600 A for a certain field excitation. With the same excitation, the OC voltage was 900 V. The resistance between a pair of terminals was 0.12 . Find the full load regulation at (a) UPF (b) 0.8 pf lagging and (c) 0.8 pf leading [7.3% ; 23.8 %; -13.2%]

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5.
A 3-phase, 50 Hz, star - connected, 2000 - kVA, 2300 - Valternator gives a short circuit current of 600 A for a
certain field excitation. With the same excitation, the OC voltage was 900 V. The resistance between a pair of
terminals was 0.12 . Find the full load regulation at (a) UPF (b) 0.8 pf lagging and (c) 0.8 pf leading
[7.3%; 23.8 %; -13.2%]
Transcribed Image Text:5. A 3-phase, 50 Hz, star - connected, 2000 - kVA, 2300 - Valternator gives a short circuit current of 600 A for a certain field excitation. With the same excitation, the OC voltage was 900 V. The resistance between a pair of terminals was 0.12 . Find the full load regulation at (a) UPF (b) 0.8 pf lagging and (c) 0.8 pf leading [7.3%; 23.8 %; -13.2%]
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