A two-pole Y-connected synchronous generator rated at 470 kVA, 480 V, 60 Hz, and 0.85 PF lagging. Itsarmature resistance RA is 0.016 Q and its synchronous reactance is 0.899 N. The core losses of thisgenerator at rated conditions are 7 kW, and the friction and windage losses are 8 kW.(a)What are the rated current la and internal generated voltage Ea of this generator?(b)What is the voltage regulation of this generator at the rated current and power factor?(c)If this generator is operating at the rated conditions and the load is suddenly removed, what willthe terminal voltage be?(d)If this machine is operating at rated conditions, what input torque must be applied to the shaftof this generator?What is the torque angle & of this generator at rated conditions?(e)

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Answered: A two-pole Y-connected synchronous…

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A two-pole Y-connected synchronous generator rated at 470 kVA, 480 V, 60 Hz, and 0.85 PF lagging.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.38P: Consider a three-phase generator rated 300MVA,23kV, supplying a system load of 240 MA and 0.9 power...

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