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 _______ 980 W 20 W 200 W 500 W 980 W 20 W 200 W 500 W ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Friction and windage loss of a 3 phase induction motor are Maximum at no load Remains the same at all loads None of the listed here Minimum at no load Maximum at no load Remains the same at all loads None of the listed here Minimum at no load ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor with 1000 r.p.m. speed will have 4 poles 8 poles 2 poles 6 poles 4 poles 8 poles 2 poles 6 poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors A high starting torque can be obtained in a 3phase induction motor by _______ Decreasing rotor resistance Increasing rotor reactance None of the listed here Increasing rotor resistance Decreasing rotor resistance Increasing rotor reactance None of the listed here Increasing rotor resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed in the cage induction motor with auto-starter is k/torque with direct switching k2/torque with direct switching K2 × torque with direct switching K × torque with direct switching k/torque with direct switching k2/torque with direct switching K2 × torque with direct switching K × torque with direct switching ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ Direct on line None of the listed here By auto transformer starting Star-delta starting Direct on line None of the listed here By auto transformer starting Star-delta starting ANSWER DOWNLOAD EXAMIANS APP
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