How is the only capacitor used in a PSC motor typically characterized?

In a Permanent Split Capacitor (PSC) motor, the capacitor is primarily characterized as a run capacitor. This type of capacitor remains in the circuit and provides continuous assistance to the motor during its operational phase. The run capacitor improves the efficiency of the motor and enhances its performance, particularly during the operating conditions by creating a phase shift that helps in producing smoother and more consistent torque.

Unlike starting capacitors that are only engaged during startup and then disconnected from the circuit, the run capacitor in a PSC motor stays connected and actively contributes to the motor’s performance as long as the motor is running. By helping to maintain a strong magnetic field and reducing energy losses, it allows the motor to operate effectively under varying load conditions.

In contrast, the other options describe characteristics that do not apply to a run capacitor in a PSC motor. Although splitting capacitors and starting capacitors play significant roles in different motor designs, they are not features associated with the use of capacitors in PSC motors, making run capacitor the correct characterization.