Prepare for the essential 636 Period 3 Motor Final Test with comprehensive flashcards and detailed questions. Access explanations and hints for each question to ace your exam!

Multiple Choice

In a permanent split-capacitor motor, the capacitor is connected:

In a permanent split-capacitor motor, the capacitor’s job is to create a phase-shifted current in the auxiliary (start) winding so a rotating magnetic field is produced for starting torque. To do this, the capacitor is placed in series with the starting winding, and that series combination is connected across the supply in parallel with the run winding. The run winding is fed directly from the supply, while the starting winding gets current through the capacitor, giving the necessary phase difference. If the capacitor were simply across the supply or placed in series with the run winding, the start winding wouldn’t experience the proper phase shift, and the motor wouldn’t start or run correctly.

In a permanent split-capacitor motor, the capacitor’s job is to create a phase-shifted current in the auxiliary (start) winding so a rotating magnetic field is produced for starting torque. To do this, the capacitor is placed in series with the starting winding, and that series combination is connected across the supply in parallel with the run winding. The run winding is fed directly from the supply, while the starting winding gets current through the capacitor, giving the necessary phase difference. If the capacitor were simply across the supply or placed in series with the run winding, the start winding wouldn’t experience the proper phase shift, and the motor wouldn’t start or run correctly.