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: 10 100 1 0.5 10 100 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of 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 Armature current Vs reactive power Armature current Vs active power ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current load interrupter switches are used relays are used isolators are used circuit breakers are used load interrupter switches are used relays are used isolators are used circuit breakers are used ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Power Factor correcting element is generally connected in _____ series with load parallel to source parallel to the load series with source series with load parallel to source parallel to the load series with source ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Who was the political Guru of Netaji? R. Das Sardar Patel Gokhle Lokmanya Tilak R. Das Sardar Patel Gokhle Lokmanya Tilak ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is leading zero unity lagging leading zero unity lagging ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
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