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Q#1 Power System Protection GATE EE 2008 MCQ +2 marks -0.66 marks

A lossless single machine infinite bus power system is shown below:

The synchronous generator transfers 1.0 per unit of power to the infinite bus. The critical clearing time of circuit breaker is 0.28s. If another identical synchronous generator is connected in parallel to the existing generator and each generator is scheduled to supply 0.5 per unit of power, then the critical clearing time of the circuit breaker will

 

Reduce to 0.14 s  

Reduce but will be more than 0.14 s

Remain constant at 0.28 s

Increase beyond 0.28 s

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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