A synchronous motor with a wound rotor is a type of electric motor that operates at a constant speed, synchronized with the frequency of the power supply. It features a rotor that has windings, which are connected to an external power source. This design allows for better control of the motor's magnetic field and torque. In this motor, the rotor is energized by direct current (DC), creating a magnetic field that interacts with the stator's rotating magnetic field. This interaction enables the motor to maintain synchronous speed, making it suitable for applications requiring precise speed control, such as in industrial machinery and power generation.