A shaded-pole motor is aided in starting by a ____.

A shaded-pole motor is aided in starting by a ____.

• A. Capacitor
• B. Transformer
• C. Phase shift
• D. Inductor

Answer: (C)

A shaded-pole motor is assisted in its starting process through phase shifting. This type of motor utilizes a unique design where a portion of the stator winding is shaded by a copper ring, creating a phase shift in the magnetic field. When alternating current (AC) is applied, the shaded portion generates a delayed magnetic field compared to the unshaded portion, resulting in a rotating magnetic field. This phase difference is crucial for initiating rotor movement, enabling the motor to start up effectively. The phase shift produced by shading is an inherent characteristic of shaded-pole motors, which is essential for their operation, especially when starting under load. This design makes them suitable for applications requiring low starting torque and simplicity, such as in fans and small appliances.

A shaded-pole motor is assisted in its starting process through phase shifting. This type of motor utilizes a unique design where a portion of the stator winding is shaded by a copper ring, creating a phase shift in the magnetic field. When alternating current (AC) is applied, the shaded portion generates a delayed magnetic field compared to the unshaded portion, resulting in a rotating magnetic field. This phase difference is crucial for initiating rotor movement, enabling the motor to start up effectively.

The phase shift produced by shading is an inherent characteristic of shaded-pole motors, which is essential for their operation, especially when starting under load. This design makes them suitable for applications requiring low starting torque and simplicity, such as in fans and small appliances.