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 65% 90% 40% None of the listed here 65% 90% 40% 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 Less rotor losses Uniform torque Greater mechanical strength None of the listed here Less rotor losses 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. 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 Either more or less than the number of Always less than the number of Always greater than the number of ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A four speed squirrel cage induction motor uses______ stator windings. Four Three One Two Four Three One Two ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the rotor slots are made deeper, rotor resistance is ______ Increased at starting Increased under running conditions Decreased at starting None of the listed here Increased at starting Increased under running conditions Decreased at starting None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS