A three-phase 6-pole, 60 Hz Y-connected synchronous generator is connected to an infinite bus. The open circuit voltage (field voltage) is 12 kV line-to-line. The terminal voltage is 14 kV line- to-line. The synchronous reactance is 2 2. The open circuit voltage leads the terminal voltage by 30°. The machine's rotational losses are 2MW. (a) Find the real power output of the generator. (b) Draw the phasor diagram for the generator. (Include current!) (c) Calculate the power factor being supplied by the generator. (d) Find the rotor speed in rpm (e) Find the torque required to drive the machine (f) Find the pullover power (g) Find the generator's efficiency (h) Find the generator's voltage regulation.

A three-phase 6-pole, 60 Hz Y-connected synchronous generator is connected to an infinite bus. The open circuit voltage (field voltage) is 12 kV line-to-line. The terminal voltage is 14 kV line- to-line. The synchronous reactance is 2 2. The open circuit voltage leads the terminal voltage by 30°. The machine's rotational losses are 2MW. (a) Find the real power output of the generator. (b) Draw the phasor diagram for the generator. (Include current!) (c) Calculate the power factor being supplied by the generator. (d) Find the rotor speed in rpm (e) Find the torque required to drive the machine (f) Find the pullover power (g) Find the generator's efficiency (h) Find the generator's voltage regulation.

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

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.3P

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