In which applications are split phase motors commonly used?

Split phase motors are predominantly utilized in applications requiring moderate power and the ability to start under load, making them particularly well-suited for fans and medium-sized blowers. The design of split phase motors allows for a simple and effective means of starting the motor with a starting winding that creates a phase shift, creating initial torque necessary for the motor to start rotating. Once the motor is up to speed, the starting winding is usually disconnected.

Fans and medium-sized blowers typically operate at relatively lower power levels compared to heavy-duty compressors and high-speed turbines, which demand motors that can handle more significant load and continuous operation. Additionally, automotive starter motors have specific design requirements and typically use different types of motors, such as permanent magnet or series-wound motors, which are more effective in providing the necessary burst of power to start an engine. Thus, the characteristics and advantages of split phase motors align closely with the operational needs of fans and medium-sized blowers.