What type of starter uses an inductor connected in series with the motor winding?

The correct answer is related to the reactor starter, which utilizes an inductor connected in series with the motor winding. This type of starter is designed to limit the initial current drawn by the motor during startup. By using an inductor, the reactor starter creates a drop in voltage across the motor, thereby reducing the inrush current that can be detrimental to both the motor and the electrical supply.

When the motor starts, the inductor provides a high impedance path, limiting the current to a safe level while still allowing enough torque to be produced for startup. Once the motor reaches its operational speed, the inductor can be effectively bypassed or switched out of the circuit, allowing the motor to operate at full voltage.

This method is advantageous in applications where high starting currents could cause disruptions or damage. The reactor starter strikes a balance between control and performance, promoting a smoother startup process while protecting the electrical infrastructure.