What is the main benefit of using a capacitor-start motor?

A capacitor-start motor is specifically designed to provide a significant advantage during the startup phase of operation, which is primarily characterized by high starting torque. The primary function of the capacitor in this motor is to create a phase shift in the current, allowing for greater torque generation when the motor starts. This is particularly beneficial for applications that require overcoming inertia or heavy loads at startup, making the motor capable of starting under demanding conditions.

High starting torque is essential for devices that need to accelerate quickly once powered, such as compressors, pumps, and fans. With the added torque provided by the capacitor, these motors can handle heavier loads without stalling or struggling to reach operational speed.

In contrast, options such as lower operational costs, less wear on components, and greater ease of installation do not directly pertain to the fundamental benefit offered by capacitor-start motors. While they might relate to other types of motors or possible advantages, the standout feature of a capacitor-start motor is its ability to deliver high starting torque, making it an excellent choice for various applications that demand such performance during startup.