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Q#1 Power System Stability GATE EE 2017 NAT +2 marks -0 marks

A 3-phase, 2-pole, 50 Hz, synchronous generator has a rating of 250 MVA. 0.8 pf lagging. The kinetic energy of the machine at synchronous speed is 1000 MJ. The machine is running steadily at synchronous speed and delivering 60 MW power at a power angle of 10 electrical degrees. If the load is suddenly removed, assuming the acceleration is constant for 10 cycles, the value of the power angle after 5 cycles is ___________ electrical degrees.

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Topic Questions Attempted Correct
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
Engineering Mathematics 225 0 0
General Aptitude 211 0 0