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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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Network Analysis 260 0 0
Signals and Systems 165 0 0
Control Systems 258 0 0
Analog Electronics 184 0 0
Digital Electronics 148 0 0
Electrical Machines 392 0 0
Power Electronics 237 0 0
Power Systems 344 0 0
EMFT EE 107 0 0
Measurement 158 0 0
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General Aptitude 211 0 0