EEE :: Single Phase Induction Motors
- Which of the following motor will have relatively higher power factor ?
- In split-phase motor auxiliary winding is of
- In a capacitor start and run motors the function of the running capacitor in series with the auxiliary winding is to
- Which of the following single-phase induction motors is generally used in time phonographs?
- In a capacitor start motor, the phase displacement between starting and running winding can be nearly
- After the starting winding of a single phase induction motor is disconnected from supply, it continues to run only on
- The power factor of a single-phase induction motor is usually
- Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a
- To reverse the direction of rotation of acapacitor start motor while it is running we should
- A universal motor is one which
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A.
disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding |
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B.
disconnect motor from supply and immediately reconnect it to supply with reversed con-nections of the main winding |
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C.
reverse the direction of connection of the auxiliary winding and after motor comes to rest then connect auxiliary winding to the supply |
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D.
reverse the direction of connections of the auxiliary winding and immediately connect it to supply |