Three Phase Induction Motors The frequency of rotor current in a 6-pole , 50 Hz, 3-phase induction motor running at 950 rpm is 0.05 Hz 5 Hz 2.5 Hz 1.5 Hz 0.05 Hz 5 Hz 2.5 Hz 1.5 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The induction motor has lagging power factor during Starting only Operation only None of the listed here Both starting and operation Starting only Operation only None of the listed here Both starting and operation ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ By auto transformer starting Star-delta starting Direct on line None of the listed here By auto transformer starting Star-delta starting Direct on line None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a 3 phase induction motor, the rotor speed is _____ the synchronous speed. Smaller than Greater than Equal to None of the listed here Smaller than Greater than Equal to None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the frequency of 3-phase supply to the stator of a 3-phase induction motor is increased, then synchronous speed ______ Remains unchanged None of the listed here Is increased Is decreased Remains unchanged None of the listed here Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage induction motor, the number of stator slots is _______ rotor slots. Either more or less than the number of Always less than the number of Always eqaul to the number of Always greater than the number of Either more or less than the number of Always less than the number of Always eqaul to the number of Always greater than the number of ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS