GETCO Exam Paper (22-07-2015) In differential protection scheme, a stabilizing resistance connected to increase the relay sensitivity block harmonics reduce the effect of non identical CTs increase the current limit increase the relay sensitivity block harmonics reduce the effect of non identical CTs increase the current limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The steady state stability of the power systems is most effected by power factor of the load stability of generator transmission line reactance voltage at generator bus power factor of the load stability of generator transmission line reactance voltage at generator bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The constraints that are to be met with while solving UC problem are all are correct Minimum down time Spinning reserve Minimum up time all are correct Minimum down time Spinning reserve Minimum up time ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 6\7 7\8 5\6 2\3 6\7 7\8 5\6 2\3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) The rating of given on the name plate of a transformer indicates the: Apparent power which it draws from the supply mains Apparent power which it can supply True power whichh it draws from the supply mains True power which it can supply Apparent power which it draws from the supply mains Apparent power which it can supply True power whichh it draws from the supply mains True power which it can supply ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The rating of given on the name plate of a transformer indicates the:Apparent power which it can supply S=V( supplied voltage)*I (load current)active power = v* i*cosφreactive power = v* i*sinφ
GETCO Exam Paper (22-07-2015) Which of the following is the most likely reason for large overshoot in a control system? high retarding torque high positive correcting torque presence of dead time delay High gain in a system high retarding torque high positive correcting torque presence of dead time delay High gain in a system ANSWER DOWNLOAD EXAMIANS APP
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