Nate Core Practice Test

Where are run capacitors typically wired?

1. In parallel with the start winding

2. In series with the start winding

3. In series with the run winding

4. Directly to the power supply

The correct answer is: In series with the start winding

Run capacitors are typically wired in series with the run winding of an electric motor. This configuration allows the capacitor to improve the efficiency and performance of the motor during its running operation. The run capacitor provides an additional phase shift to the current in the motor winding, enhancing its torque and stabilizing the running conditions. Using a run capacitor in series with the run winding ensures that the motor operates more smoothly and efficiently, generating less heat and consuming less energy during operation. This is especially important in applications where motors are required to run for extended periods. While there are various configurations for capacitors in motor systems, such as parallel configurations with start windings, this specific setup is essential for enhancing the continuous performance of the motor.