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Q#1 Power System Stability GATE EE 2012 MCQ +2 marks -0.66 marks

A cylindrical rotor generator delivers 0.5pu power in the steady state to an infinite bus through a transmission line of reactance 0.5pu. The generator no-load voltage is 1.5pu and the infinite bus voltage is 1pu. The inertia constant of the generator is 5 MW-s/MVA and the generator reactance is 1pu. The critical clearing angle, in degrees, for a three-phase dead short circuit fault at the generator terminal is

53.5

60.2

70.8

79.6

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Electrical Machines 390 0 0
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EMFT EE 9 0 0
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