A 60-Hz synchronous generator having inertia constant H9.94 MJMVA and a transient reactance X0.3 per unit is connected to an infinite bus through a transformer and two transmition lines in parallel. Reactances are marked on the diagram on a common syst base, The generator is delivering real power of 0.6 per unit, 0.8 power factor lagging to the infinite bus at a voltage of V1 par n Assume the per unit damping power coefficient is D 0.138. Consider a small disturbance of A6 100.1745 radian ( the breakes open and then quickly close). Separk 3. X 0.2 to Xu -03 X-0.3 to Xu-03 The damped oscillation frequency in hertz is:

A 60-Hz synchronous generator having inertia constant H9.94 MJMVA and a transient reactance X0.3 per unit is connected to an infinite bus through a transformer and two transmition lines in parallel. Reactances are marked on the diagram on a common syst base, The generator is delivering real power of 0.6 per unit, 0.8 power factor lagging to the infinite bus at a voltage of V1 par n Assume the per unit damping power coefficient is D 0.138. Consider a small disturbance of A6 100.1745 radian ( the breakes open and then quickly close). Separk 3. X 0.2 to Xu -03 X-0.3 to Xu-03 The damped oscillation frequency in hertz is:

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.49P

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