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A 200 MVA alternator operates at no load at frequency of 50 Hz, it has an inertia constant of 5 MW-sec/MVA and the governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time?
76 Hz
76 Hz
85 Hz
85 Hz
76 Hz
Quick Summary: Practice and solve "A 200 MVA alternator operates at no load at frequency of 50 Hz, it has an inertia constant of 5 MW-s..." for Electrical - Power Generation. The correct answer is Option A: 76 Hz. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(b) **