Three Phase Induction Motors The approximate efficiency of a 3-phase , 50 Hz, 4 pole induction motor running at 1350 rpm is ______ 40% None of the listed here 65% 90% 40% None of the listed here 65% 90% 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 ______ None of the listed here Greater mechanical strength Uniform torque Less rotor losses None of the listed here Greater mechanical strength Uniform torque Less rotor losses ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage induction motor, the number of stator slots is _______ rotor slots. Always eqaul to the number of Always less than the number of Always greater than the number of Either more or less than the number of Always eqaul to the number of Always less than the number of Always greater than the number of Either more or less than the number of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A four speed squirrel cage induction motor uses______ stator windings. Two Four Three One Two Four Three One ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased under running conditions 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 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS