60Hz, 4 pole turbogenerator rated 200MVA, 11kV has an inertia constant of 8.0 MJ/MVA. (a) Find the stored energy in the rotor at synchronous speed. (b) If the mechanical input is suddenly raised to 180MW for an electrical load of 125MW, find rotor acceleration, neglecting mechanical and electrical losses. (c)If the acceleration calculated in part(b) is maintained for 10 cycles, find the change in torque angle

60Hz, 4 pole turbogenerator rated 200MVA, 11kV has an inertia constant of 8.0 MJ/MVA. (a) Find the stored energy in the rotor at synchronous speed. (b) If the mechanical input is suddenly raised to 180MW for an electrical load of 125MW, find rotor acceleration, neglecting mechanical and electrical losses. (c)If the acceleration calculated in part(b) is maintained for 10 cycles, find the change in torque angle

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 6.45P

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