GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of Armature current Vs power factor Armature current Vs active power Armature current Vs reactive power Armature current Vs Field current Armature current Vs power factor Armature current Vs active power Armature current Vs reactive power Armature current Vs Field current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
GETCO Exam Paper (22-07-2015) In case of HVDC transmission there is _____ charging current but no skin effect both charging effect and skin effect no charging current but skin effect no charging current no skin effect charging current but no skin effect both charging effect and skin effect no charging current but skin effect no charging current no skin effect ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For selecting low voltage cable which of the following factors is not important? current carrying capacity short circuit current rating permissible voltage drop voltage grade current carrying capacity short circuit current rating permissible voltage drop voltage grade ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Laplace transforms is used for for finding initial condition in a system converting diffential equation to algebraic equation converting non linear equation to linear equation finding transfer function of any systems for finding initial condition in a system converting diffential equation to algebraic equation converting non linear equation to linear equation finding transfer function of any systems 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) In load flow analysis, the load at the bus is represented as a constant impedance connected at the bus none of these a constant current drawn from the bus a voltag dependent impedance at the bus a constant impedance connected at the bus none of these a constant current drawn from the bus a voltag dependent impedance at the bus ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS