The mmf produced by the current of the three phase induction motor __

1.	The mmf produced by the current of the three phase induction motor _________
A.	is standstill with respect to stator mmf
B.	rotates at the speed of rotor in air gap
C.	rotates at slip speed with respect to stator mmf
D.	rotates at synchronous speed with respect to rotor
Answer» B. rotates at the speed of rotor in air gap

Discussion

No Comment Found

Related MCQs

For a constant load torque, the supply voltage of a squirrel cage induction motor is reduced by a factor of 0.5, its rotor current is modified by a factor is?
If a 400 V, 50 hz star connected, 3-phase squirrel cage induction motor is operated from 400V and 75 Hz supply. The torque that the motor can now provide while drawing rated current from the supply will _________
The torque developed in the three phase induction motor depends on _________
A three phase induction motor is connected to 400V, 50 hz supply. If the stator to rotor turn ratio is 2, the standstill rotor induced voltage per phase is?
In a three phase induction motor, voltage between the slip rings at standstill is 50 V. At full load the slip is 0.04. The voltage between slip rings at full load is?
A 3-phase induction motor is operating at slip ‘s’. If the slip is reversed, its slip at the instant will be _________
In an induction motor slip will be negative when the _________
The mmf produced by the current of the three phase induction motor _________
If the three phase supply is fed to the stator and it is running at its normal operating conditions. Then the synchronous speed can be defined as speed at which?a) stator magnetic field rotatesb) rotor magnetic field rotatesc) rotor rotatesd) flux is set up in the rotor 7.If the three phase supply is fed to the rotor and it is running at its normal operating conditions. Then the synchronous speed can be defined as speed at which?
The voltage actually used to set up the working flux in the three phase induction motor is _________

The mmf produced by the current of the three phase induction motor _________

Discussion

No Comment Found

Related MCQs

Reply to Comment