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(4)A 50-Hz 1200-kVA 3.3-KV 3-phase star-connected synchronous generator gives full-load current with 40 A excitation and
Posted: Mon May 09, 2022 7:38 am
by answerhappygod
- 4 A 50 Hz 1200 Kva 3 3 Kv 3 Phase Star Connected Synchronous Generator Gives Full Load Current With 40 A Excitation And 1 (154.11 KiB) Viewed 39 times
(4)A 50-Hz 1200-kVA 3.3-KV 3-phase star-connected synchronous generator gives full-load current with 40 A excitation and its output terminals short-circuited. The same excitation current on open circuit gives a terminal voltage of 2 kV. Assuming a linear open-circuit characteristic and negligible stator resistance, determine the excitation current required when delivering 900 kVA at rated voltage and 0.8 p.f. lagging. What is the field current and percentage voltage regulation when delivering the same power at minimum current? (87.4 A, 70.2 A, 6.4%)