GETCO Exam Paper (22-07-2015) Penalty factor in power system economical operation is measure of generation cost Line loss all are correct fuel cost generation cost Line loss all are correct fuel cost ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Critical clearing time of a fault in a power system is related to Transient stability limit Steady state limit Reactive power limit Short circuit limit Transient stability limit Steady state limit Reactive power limit Short circuit limit ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Hopkinson's test is the test to be carried out on induction motor with any DC motor two identical induction motors induction motor with synchronous motor two identical DC motors induction motor with any DC motor two identical induction motors induction motor with synchronous motor two identical DC motors ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In hopkinson test known as regenerative testtwo identical machine coupledD.C shunt motorD.C shunt generatortemperature rise can be check under rated conditionlarge machine can be tested without drawing much power.
GETCO Exam Paper (22-07-2015) Root Locus is locus of the _____ close loop poles open loop zeros to close poles open loop poles to open loop zeros close loop poles to close loop zeros close loop poles open loop zeros to close poles open loop poles to open loop zeros close loop poles to close loop zeros ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 2\3 6\7 5\6 7\8 2\3 6\7 5\6 7\8 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) Switching surges are high votage DCs high voltage Acs power frequency voltage short duration transient voltage high votage DCs high voltage Acs power frequency voltage short duration transient voltage ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS