What type of AC motor is most commonly used at a treatment plant?

What type of AC motor is most commonly used at a treatment plant?

• A. Capacitor-start motor
• B. Squirrel-cage induction motor
• C. Brushless DC motor
• D. Stepper motor

Answer: (B)

The squirrel-cage induction motor is the most commonly used type of AC motor in treatment plants due to its reliability, simplicity, and efficiency. These motors are robust and able to handle the harsh operating conditions often present in industrial environments. They require minimal maintenance compared to other motor types, as they have no brushes or commutators that wear out. Squirrel-cage motors operate by inducing currents in the rotor through electromagnetic induction from the stator's rotating magnetic field. This design allows for a high starting torque and the ability to run at a variety of speeds, making them versatile for various applications in treatment facilities, such as in pumps, fans, and compressors. In contrast, the other motor types listed have specific uses or limitations that make them less suitable for the broad range of applications found in a treatment plant. Capacitor-start motors are generally used for applications requiring high starting torque, but they are not as commonly used for continuous operation like squirrel-cage motors. Brushless DC motors offer advantages in efficiency but are more complex and costly, making them less practical for widespread use in treatment facilities. Stepper motors, while useful for precise positioning, are typically not designed for high-power continuous applications, limiting their applicability in an industrial setting. Therefore, the

The squirrel-cage induction motor is the most commonly used type of AC motor in treatment plants due to its reliability, simplicity, and efficiency. These motors are robust and able to handle the harsh operating conditions often present in industrial environments. They require minimal maintenance compared to other motor types, as they have no brushes or commutators that wear out.

Squirrel-cage motors operate by inducing currents in the rotor through electromagnetic induction from the stator's rotating magnetic field. This design allows for a high starting torque and the ability to run at a variety of speeds, making them versatile for various applications in treatment facilities, such as in pumps, fans, and compressors.

In contrast, the other motor types listed have specific uses or limitations that make them less suitable for the broad range of applications found in a treatment plant. Capacitor-start motors are generally used for applications requiring high starting torque, but they are not as commonly used for continuous operation like squirrel-cage motors. Brushless DC motors offer advantages in efficiency but are more complex and costly, making them less practical for widespread use in treatment facilities. Stepper motors, while useful for precise positioning, are typically not designed for high-power continuous applications, limiting their applicability in an industrial setting.

Therefore, the