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1-A 60 Hz generator supplying 60% of Pmax to an infinite bus trough a reactive network. A fault occurs which increases the reactance of network between the generator internal voltage and the infinite bus by 400%. When the fault is cleared the maximum power that can be delivered is 80% of the original maximum value. Determine the critical clearing angle for the condition described. Sketch powver angle curves in pre-fault during fault and post fault conditions

1-A 60 Hz generator supplying 60% of Pmax to an infinite bus trough a reactive network. A fault occurs which increases the reactance of network between the generator internal voltage and the infinite bus by 400%. When the fault is cleared the maximum power that can be delivered is 80% of the original maximum value. Determine the critical clearing angle for the condition described. Sketch powver angle curves in pre-fault during fault and post fault conditions

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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1-A 60 Hz generator supplying 60% of Pmax to an infinite bus trough a reactive network. A fault occurs which increases the reactance of network between the generator internal voltage and the infinite bus by 400%. When the fault is cleared the maximum power that can be delivered is 80% of the original maximum value. Determine the critical clearing angle for the condition described. Sketch power angle curves in pre-fault, during fault and post fault conditions.
Transcribed Image Text:1-A 60 Hz generator supplying 60% of Pmax to an infinite bus trough a reactive network. A fault occurs which increases the reactance of network between the generator internal voltage and the infinite bus by 400%. When the fault is cleared the maximum power that can be delivered is 80% of the original maximum value. Determine the critical clearing angle for the condition described. Sketch power angle curves in pre-fault, during fault and post fault conditions.
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