Final answer:
A resistance split-phase induction motor is a single-phase motor that uses a secondary winding with high resistance to create a phase-difference and initiate rotation. It requires manual rotation to start and then uses a start winding to sustain the rotation.
Step-by-step explanation:
A resistance split-phase induction motor is a type of single-phase motor that uses a secondary winding with a high resistance in series with the main winding to create a phase-difference between the two windings. This phase-difference creates a rotating magnetic field, which in turn causes the motor to start and run.
During the operation of a resistance split-phase induction motor, the main winding and the start winding are both energized by a single-phase AC voltage. The start winding, which has a higher resistance, creates a phase-shift compared to the main winding. This phase-shift allows the motor to start in the desired direction of rotation. Once the motor is running, a centrifugal switch disconnects the start winding.
It is important to note that the resistance split-phase induction motor is not self-starting and requires an initial manual rotation to overcome the initial inertia and start the rotation. Once the motor is rotated, the start winding provides the necessary phase-shift to sustain the rotation.