GETCO Exam Paper (22-07-2015) An over-current relay of current rating 5 A and setting 150% is connected to a 200/5 A CT. Then the relay to pickup, the line current required is 150 100 300 200 150 100 300 200 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) 100% string efficiency means Zero potential across each disc One of the insulator discs shorted Equal potential across each disc None uniform potential distribution across each disc Zero potential across each disc One of the insulator discs shorted Equal potential across each disc None uniform potential distribution across each disc ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) When the load is suddenly increased in the receiving end of the system, the phase shift will decrease Not affected remains same increase decrease Not affected remains same increase ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Slip at maximum torque depends on load current stator resistance stator reactance rotor resistance and reactance load current stator resistance stator reactance rotor resistance and reactance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP at maximum torque:S=Râ‚‚/Xâ‚‚
GETCO Exam Paper (22-07-2015) Which of the following is the most likely reason for large overshoot in a control system? high positive correcting torque High gain in a system high retarding torque presence of dead time delay high positive correcting torque High gain in a system high retarding torque presence of dead time delay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not function of substation batteries? operating protective relay systems emergency lighting circuits operating automatic control circuits provide supply to the excitation system operating protective relay systems emergency lighting circuits operating automatic control circuits provide supply to the excitation system ANSWER DOWNLOAD EXAMIANS APP
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