Three Phase Induction Motors A 3 phase induction motor is running at 2% slip. If the input to rotor is 1000 W, then mechanical power developed by the motor is _______ 20 W 500 W 200 W 980 W 20 W 500 W 200 W 980 W ANSWER DOWNLOAD EXAMIANS APP
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 2.5 Hz 5 Hz 1.5 Hz 0.05 Hz 2.5 Hz 5 Hz 1.5 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor if air gap increased The power factor will be low Bearing friction will reduce Windage losses will be more Copper loss will reduce The power factor will be low Bearing friction will reduce Windage losses will be more Copper loss will reduce ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Reduced voltage starter can be used with Squirrel cage induction motor only but not with slip ring motor Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage as well as slip ring induction motor Squirrel cage induction motor only but not with slip ring motor Slip ring motor only but not with squirrel cage induction motor None of these Squirrel cage as well as slip ring induction motor 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 ______ Uniform torque None of the listed here Greater mechanical strength Less rotor losses Uniform torque None of the listed here Greater mechanical strength Less rotor losses ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Friction and windage loss of a 3 phase induction motor are Minimum at no load None of the listed here Maximum at no load Remains the same at all loads Minimum at no load None of the listed here Maximum at no load Remains the same at all loads ANSWER DOWNLOAD EXAMIANS APP
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