GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is depends on load different depends on transformer design same depends on load different depends on transformer design same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) Root Locus is locus of the _____ 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 close loop poles open loop zeros to close poles ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 1000 kW 250 MW 400 MW 1000 MW 1000 kW 250 MW 400 MW 1000 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of Armature current Vs reactive power Armature current Vs active power Armature current Vs power factor Armature current Vs Field current Armature current Vs reactive power Armature current Vs active power Armature current Vs power factor 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) 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? 60 120 180 90 60 120 180 90 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt capacitors in a substation delivers lagging VAR deliver active power consume active power consumes lagging VAR delivers lagging VAR deliver active power consume active power consumes lagging VAR ANSWER DOWNLOAD EXAMIANS APP
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