Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by whitelisting our website.

Single Phase Induction Motors

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?

A. start and then stop
B. start and run slowly
C. start and run at rated speed
D. not start at all

A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________? Read More »

Single Phase Induction Motors

The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be___________?

The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be___________?

A. at the end connections
B. at the end terminals
C. anywhere on the winding inside a slot
D. at the slot edge where coil enters or comes out of the slot

The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be___________? Read More »

Single Phase Induction Motors

A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?

A centrifugal switch is used to dis- connect ‘starting winding when motor has___________?

A. run for about 1 minute
B. run for about 5 minutes
C. picked up about 50 to 70 per cent of rated speed
D. picked up about 10 to 25 per cent of rated speed

A centrifugal switch is used to dis- connect ‘starting winding when motor has___________? Read More »

Single Phase Induction Motors

If a particular application needs high speed and high starting torque, then which of the following motor will be preferred ?

If a particular application needs high speed and high starting torque, then which of the following motor will be preferred ?

A. Universal motor
B. Shaded pole type motor
C. Capacitor start motor
D. Capacitor start and run motor

If a particular application needs high speed and high starting torque, then which of the following motor will be preferred ? Read More »

Single Phase Induction Motors