split-phase winding
A split-phase winding is a type of electrical winding used in single-phase induction motors. It consists of two separate windings: the main winding and the auxiliary winding. These windings are placed 90 degrees apart in the stator, creating a phase difference that helps start the motor. The auxiliary winding is typically connected to a starting capacitor to provide an initial boost of torque.
This design allows the motor to start and run efficiently. Once the motor reaches a certain speed, a centrifugal switch often disconnects the auxiliary winding, allowing the motor to operate solely on the main winding. This method is commonly used in small appliances and tools.