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Q#1 Synchronous Machines GATE EE 2007 MCQ +2 marks -0.66 marks

An isolated 50 Hz synchronous generator is rated at 15 MW which is also the maximum continuous power limit of its prime mover. It is equipped with a speed governor with 5% droop. Initially, the generator is feeding three loads of 4 MW each at 50 Hz. One of these loads is programmed to trip permanently if the frequency falls below 48 Hz. If an additional load of 3.5 MW is connected then the frequency will settle down to

49.417 Hz              

49.917 Hz

50.083 Hz              

50.583 Hz

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Electrical Machines 390 0 0
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EMFT EE 9 0 0
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