Three Phase Induction Motors DOL starting of induction motors is usually restricted to Variable speed motors Low horsepower motors High speed motors High horsepower motors Variable speed motors Low horsepower motors High speed motors High horsepower motors ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1-S S-1 1+S None of the listed here 1-S S-1 1+S None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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 980 W 200 W 20 W 500 W 980 W 200 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In medium sized induction motor, the slip is generally around 0.4 % 14% 0.04 % 4 % 0.4 % 14% 0.04 % 4 % ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of High speed steel Stainless steel Carbon steel Cast iron High speed steel Stainless steel Carbon steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A 3 phase 440 v, 50 Hz induction motor has 4% slip. The frequency of rotor emf will be 20 Hz 50 Hz 200 Hz 2 Hz 20 Hz 50 Hz 200 Hz 2 Hz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS