Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ None of the listed here 40% 90% 65% None of the listed here 40% 90% 65% ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage rotor, the bars are not placed parallel to the shaft but are skewed to have ______ Less rotor losses None of the listed here Uniform torque Greater mechanical strength Less rotor losses None of the listed here Uniform torque Greater mechanical strength 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 greater than the number of Always eqaul to the number of Either more or less than the number of Always less than the number of Always greater than the number of Always eqaul to the number of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A four speed squirrel cage induction motor uses______ stator windings. Three Four Two One Three Four Two One ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased at starting None of the listed here Decreased at starting Increased under running conditions Increased at starting None of the listed here Decreased at starting Increased under running conditions ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS