A 480-V, 60-Hz, A-connected, four-pole synchronous generator has a synchronous reactance of 0.12 and an armature resista

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A 480-V, 60-Hz, A-connected, four-pole synchronous generator has a synchronous reactance of 0.12 and an armature resista

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A 480 V 60 Hz A Connected Four Pole Synchronous Generator Has A Synchronous Reactance Of 0 12 And An Armature Resista 1
A 480 V 60 Hz A Connected Four Pole Synchronous Generator Has A Synchronous Reactance Of 0 12 And An Armature Resista 1 (36.31 KiB) Viewed 16 times
A 480-V, 60-Hz, A-connected, four-pole synchronous generator has a synchronous reactance of 0.12 and an armature resistance of 0.0152. At full load, the machine supplies 1200A at 0.8 PF lagging. Under full-load conditions, the friction and windage losses are 40 kW, and the core losses are 30 kW. Ignore any other losses. a) What is the speed of rotation of this generator? b) Draw the per-phase equivalent circuit of the generator with the field circuit. c) Sketch the phasor diagram. d) Calculate the internal voltage required to keep the terminal voltage equal to 480 V. e) Calculate the overall efficiency. f) Calculate the voltage regulation.
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