GETCO Exam Paper (22-07-2015) Speed of induction motor at rated torque is _____ than at maximum torque. same lesser greater depends on load same lesser greater depends on load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The steady state stability of the power systems is most effected by stability of generator power factor of the load voltage at generator bus transmission line reactance stability of generator power factor of the load voltage at generator bus transmission line reactance ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The magnitude of sum of two sinusoidal AC voltages is equal to the magnitude of each individual voltage, What must be the phase difference between voltages? 60 90 180 120 60 90 180 120 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 7\8 5\6 2\3 6\7 7\8 5\6 2\3 6\7 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) Shunt capacitors in a substation consumes lagging VAR consume active power deliver active power delivers lagging VAR consumes lagging VAR consume active power deliver active power delivers lagging VAR ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Improve voltage profile Increase line impedance Reduce the fault level Improve the stability Improve voltage profile Increase line impedance Reduce the fault level Improve the stability ANSWER DOWNLOAD EXAMIANS APP
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