GETCO Exam Paper (22-07-2015) The breaking capacity of a CB is usually expressed interms of volts amperes MVA MW volts amperes MVA MW ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In synchronous motor, V-curve is a graph of 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 Armature current Vs reactive power ANSWER EXPLANATION DOWNLOAD EXAMIANS APP v curve: armature current → field currentInverted V curve: power factor → field current
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 400 MW 1000 kW 250 MW 1000 MW 400 MW 1000 kW 250 MW 1000 MW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on load current stator resistance rotor resistance and reactance stator reactance load current stator resistance rotor resistance and reactance stator reactance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=R₂/X₂
GETCO Exam Paper (22-07-2015) The surge impedance loading of the line will _____ if the length of the line is double four times become half double remains same four times become half double remains same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Surge impedance is independent of length of the line
GETCO Exam Paper (22-07-2015) The constraints that are to be met with while solving UC problem are Minimum up time Spinning reserve Minimum down time all are correct Minimum up time Spinning reserve Minimum down time all are correct ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS