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A 50 Hz, a synchronous generator capable to supply 400 MW connected to a large power system and delivering 80 MW when a three-phase fault occurs at its terminals. If the maximum power angle is to be 85°, the time in which the fault must be cleared is (in sec)

A 50 Hz, a synchronous generator capable to supply 400 MW connected to a large power system and delivering 80 MW when a three-phase fault occurs at its terminals. If the maximum power angle is to be 85°, the time in which the fault must be cleared is (in sec)

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A 50 Hz, a synchronous generator capable to supply 400 MW connected to a large power system and delivering 80 MW when a three-phase fault occurs at its terminals. If the maximum power angle is to be 85°, the time in which the fault must be cleared is (in sec) (Assume the base value is 100 MW and consider the inertia constant H = 7 MJ / MVA)
Transcribed Image Text:A 50 Hz, a synchronous generator capable to supply 400 MW connected to a large power system and delivering 80 MW when a three-phase fault occurs at its terminals. If the maximum power angle is to be 85°, the time in which the fault must be cleared is (in sec) (Assume the base value is 100 MW and consider the inertia constant H = 7 MJ / MVA)
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