GATE EE 2022 Set 1 — Question 57
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Power Systems → Power System Stability → Swing Equation & Power-Angle
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Question
A , , 4-pole, alternator has an inertia constant of . If the input and output powers of the alternator are and , respectively, the angular acceleration in mechanical degree/s is __________. (round off to nearest integer)
Correct answer
74 to 76
Solution
1.Calculate the accelerating power ():
2.Calculate the angular momentum () in MJ-s/electrical degree:
Given , , and :3.Calculate the angular acceleration in electrical degrees/s ():
4.Convert to mechanical degrees/s ():
Given poles:The angular acceleration is .Continue learning with Success Tracker
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