Which statement is true regarding the operation of a Wound Rotor Motor?

Which statement is true regarding the operation of a Wound Rotor Motor?

• A. It is less efficient at high speeds
• B. It can provide high starting torque
• C. It does not require external resistors
• D. It operates only at a fixed speed

Answer: (B)

A Wound Rotor Motor is specifically designed to handle high starting torque requirements, which makes it particularly advantageous in applications that require significant initial power to overcome inertia. The rotor windings are connected to external resistors that can be adjusted, allowing for flexibility in controlling the speed and torque of the motor during startup. This ability to manage starting torque effectively distinguishes it from other types of motors, allowing for high torque production when needed. This capability is essential in many industrial applications such as conveyors, crushers, or mills where large loads must often be started from a standstill. Utilizing external resistors not only contributes to high starting torque but also provides the means to control the motor's performance by adjusting the resistance, which can further optimize efficiency in operation. The other statements do not reflect the characteristics of a Wound Rotor Motor accurately, as they either misstate operational capabilities or limitations inherent to this type of motor.

A Wound Rotor Motor is specifically designed to handle high starting torque requirements, which makes it particularly advantageous in applications that require significant initial power to overcome inertia. The rotor windings are connected to external resistors that can be adjusted, allowing for flexibility in controlling the speed and torque of the motor during startup. This ability to manage starting torque effectively distinguishes it from other types of motors, allowing for high torque production when needed.

This capability is essential in many industrial applications such as conveyors, crushers, or mills where large loads must often be started from a standstill. Utilizing external resistors not only contributes to high starting torque but also provides the means to control the motor's performance by adjusting the resistance, which can further optimize efficiency in operation.

The other statements do not reflect the characteristics of a Wound Rotor Motor accurately, as they either misstate operational capabilities or limitations inherent to this type of motor.