A popular style of fan motor used on older refrigeration equipment is the permanent split capacitor (PSC) motor. It is an electric motor made up of essentially two magnets: one is stationary (the ...

Run capacitors are permanently connected in the starting circuit (as in a permanent split capacitor, or PSC, motor). These are commonly found in air-handling applications, residential garage door ...

Troubleshooting Capacitor Motors. A capacitor motor is a type of split-phase motor that includes one or two capacitors to provide the motor more starting and/or running torque. Troubleshooting ...

The traditional TRIAC control for a single-phase ac permanent-split-capacitor (PSC) motor is shown in Fig. 2. The TRIAC is driven to change the trigger phase angle for the ac voltage, ...