Three Phase Induction Motors Slip of an induction motor is negative when None of these Rotor speed is less than the synchronous speed of the field and are in the same direction Rotor speed is more than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction None of these Rotor speed is less than the synchronous speed of the field and are in the same direction Rotor speed is more than the synchronous speed of the field and are in the same direction Magnetic field and rotor rotate in opposite direction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a squirrel cage induction motor is Low Negligible Slightly more than full load torque Same as full load torque Low Negligible Slightly more than full load torque Same as full load torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In a squirrel cage induction motor, the number of rotor bars is generally ________ Even number Prime number None of the listed here Equal to stator poles Even number Prime number None of the listed here Equal to stator poles ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The crawling in an induction motor is caused by Low voltage supply High loads Harmonics developed in the rotor Improper design of machine Low voltage supply High loads Harmonics developed in the rotor Improper design of machine ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. high resistance Low resistance Large slip High reactance high resistance Low resistance Large slip High reactance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors Slip rings are usually made of Phospor bronze Carbon Aluminium Copper Phospor bronze Carbon Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
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