Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ By auto transformer starting None of the listed here Star-delta starting Direct on line By auto transformer starting None of the listed here Star-delta starting Direct on line 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 S/1-S S 1-S 1/S S/1-S S 1-S ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The complete circle diagram of induction motor can be drawn with the help of data found from Blocked rotor test All of these No-load test Stator resistance test Blocked rotor test All of these No-load test Stator resistance test 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 200 Hz 2 Hz 50 Hz 20 Hz 200 Hz 2 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If any two phases for an induction motor are interchanged The motor will not run The motor will run in reverse direction The motor will burn The motor will run at reduced speed The motor will not run The motor will run in reverse direction The motor will burn The motor will run at reduced speed ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The air gap between stator and rotor of 3-phase induction motor ranges from ______ 2 cm to 4 cm 0.4 mm to 4 mm 1 cm to 2 cm 4 cm to 6 cm 2 cm to 4 cm 0.4 mm to 4 mm 1 cm to 2 cm 4 cm to 6 cm ANSWER DOWNLOAD EXAMIANS APP
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