In a 3-phase slip ring induction motor high starting torque is achiev – McqOptions

MCQOPTIONS

1.	In a 3-phase slip ring induction motor high starting torque is achieved by _________
A.	increasing supply voltage
B.	increasing supply frequency
C.	connecting a capacitor across the motor terminals
D.	connecting a star connected resistance across slip ring terminals of motor
Answer» E.

Discussion

No Comment Found

Related MCQs

If the rotor circuit resistance is increased in an induction motor, maximum torque will occur at _________
What is the synchronous watt?
The rotor power input of 3-phase induction motor is 15 kW at a slip of 5%. The mechanical power developed at the shaft is?
In an induction motor, what is the ratio of the rotor copper loss to rotor input?
Iron loss in the rotor is negligible. This is due to _________
The losses that occur in induction motor are _________
In a three-phase induction motor, the starting torque is maximum when?
In a 3-phase slip ring induction motor high starting torque is achieved by _________
For achieving high starting torque and high operating efficiency an induction motor should have _______ rotor circuit resistance and _______ circuit resistance under operating condition.
The starting torque of the squirrel-cage induction motor is _________