Three Phase Induction Motors DOL starting of induction motors is usually restricted to High speed motors High horsepower motors Variable speed motors Low horsepower motors High speed motors High horsepower motors Variable speed motors Low horsepower motors ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In an induction motor, the ratio of rotor cu loss and rotor input is given by 1/S 1-S S/1-S S 1/S 1-S S/1-S S ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ Practically zero 1 0.5 0.2 Practically zero 1 0.5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 4 pole induction motor has a synchronous speed of 1500 rpm, then supply frequency is _____ None of the listed here 50 Hz 25 Hz 60 Hz None of the listed here 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The induction motor has lagging power factor during Starting only None of the listed here Both starting and operation Operation only Starting only None of the listed here Both starting and operation Operation only ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The air gap between stator and rotor of 3-phase induction motor ranges from ______ 4 cm to 6 cm 0.4 mm to 4 mm 1 cm to 2 cm 2 cm to 4 cm 4 cm to 6 cm 0.4 mm to 4 mm 1 cm to 2 cm 2 cm to 4 cm ANSWER DOWNLOAD EXAMIANS APP
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