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

The hydroelectric plants in the industry are best suited with _________
A peaky voltage supply is given to the 3 phase power transformer of the connection power system. These results in _________
A three phase induction motor is connected to the infinite bus operating at the normal conditions. There occurs an unbalancing in the supply, leading to _________
If one of the phases of RYB supply gets broken, then the temperature rise of the induction motor _________
If one of the phases of the supply breaks down, then the connected three phase induction motor _________
For squirrel cage and slip ring induction motor, cooling methods is efficient in _________
In dc machine iron losses cause _________
If two series motors are identically coupled. One is running as motor while other as generator. For this combination, the iron losses and frictional losses are found identical for _________
For the given traction application using a dc series motor for a starting time t is applied. If this method is replaced by a series-parallel control, giving 50% time for each series and parallel. The saving in the starting energy of _________
If the rotor circuit resistance is increased in an induction motor, maximum torque will occur at _________