Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Star None of the listed here Delta Partly star and partly delta Star None of the listed here Delta Partly star and partly delta ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ By auto transformer starting Direct on line None of the listed here Star-delta starting By auto transformer starting Direct on line None of the listed here Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The speed of a squirrel-cage induction motor can be controlled by all of the following except Changing number of poles Changing supply frequency Reducing supply voltage Changing winding resistance Changing number of poles Changing supply frequency Reducing supply voltage Changing winding resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to S × rotor input None of the listed here (1-S) × rotor input (1+S) × rotor input S × rotor input None of the listed here (1-S) × rotor input (1+S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased Bearing friction will reduce The power factor will be low Windage losses will be more Copper loss will reduce Bearing friction will reduce The power factor will be low Windage losses will be more Copper loss will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors For the same kVA rating, the leakage flux in induction motor is _______ that of transformer. Less than About the same None of the listed here More than Less than About the same None of the listed here More than ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS