GETCO Exam Paper (22-07-2015) The PU impedance of a 1089 MVA, 33 kV generator is 1, the ohmic value of its impedance is: 100 10 1 0.5 100 10 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is the wrong statement in terms of slack bus? voltage and angle is specified at this bus it has finite reactive power generation capability it should be the largest generator bus in the system it should be located at the centre of the area voltage and angle is specified at this bus it has finite reactive power generation capability it should be the largest generator bus in the system it should be located at the centre of the area ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Penalty factor in power system economical operation is measure of fuel cost Line loss generation cost all are correct fuel cost Line loss generation cost all are correct ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which power plant may take several days to start up and shunt down? Base load Peak load none of these solar power plant Base load Peak load none of these solar power plant ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following breaking method save energy? plugging regenerative breaking dynamic breaking resistor breaking plugging regenerative breaking dynamic breaking resistor breaking ANSWER EXPLANATION DOWNLOAD EXAMIANS APP three types of electric breaking:Regenerative breaking( leads to economic and energy consevation)pugging (more efficient method of breaking)rheostatic breaking
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of Armature current Vs Field current Armature current Vs reactive power Armature current Vs power factor Armature current Vs active power Armature current Vs Field current Armature current Vs reactive power Armature current Vs power factor Armature current Vs active power ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
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