13.19 A generator is transferring power to a load through a short line when a 3-phase fault occurs onthe line. The maximum power limit before fault is 2.1 pu and initial power transfer is I pu. Theinertia constant is 5 MJ/ MVA. Find critical clearing angle and critical clearing time. f = 50 Hz.[81.697°, 0.2433 secs]13.20 A synchronous generator of 100 MVA rating is supplying 62.5 MVA at 0.8 lagging p.f. Thetransfer reactance is I pu for the prefault conditions and 3 pu during the fault condition. Afterfault clearing the generator supplies 43.75 MVA at 0.8 lagging p.f. Find critical clearing angle.[68.58⁰]

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13.19 A generator is transferring power to a load through a short line when a 3-phase fault occurs on the line. The maximum power limit before fault is 2.1 pu and initial power transfer is I pu. The inertia constant is 5 MJ/ MVA. Find critical clearing angle and critical clearing time. f= 50 Hz. [81.697°, 0.2433 secs]

13.19 A generator is transferring power to a load through a short line when a 3-phase fault occurs on the line. The maximum power limit before fault is 2.1 pu and initial power transfer is I pu. The inertia constant is 5 MJ/ MVA. Find critical clearing angle and critical clearing time. f= 50 Hz. [81.697°, 0.2433 secs]

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 11.8P

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