Q.

Synchronous motors are not used 

  • AIn power houses and substations in parallel to bus bars for pf correction 
  • BIn factories having large number of induction motors and other power apparatus operating at lagging power factor for pf improvement 
  • CFor driving electric trains cranes, machine tools and line shaft drives
  • DFor driving continuously operating and constant speed equipment such as centrifugal pumps, fans blowers, ammonia and air compressors motor generator sets etc.
Correct Answer : (C)

For driving electric trains cranes, machine tools and line shaft drives

Hints :

Synchronous motors are not used For driving electric trains cranes, machine tools and line shaft drives.

Previous

Synchronous motors generally have 

Next

Number of slip rings in a 3-phase synchronous motor will be 

Join The Discussion