Basic Electrical Circuits-Capacitor Start Capacitor Run Motor

Capacitor start capacitor run motor connection diagram. Capacitor motor connections. Motor start capacitor. Motor run capacitor. Capacitor starting motor. Capacitor start capacitor run motor.  Capacitor start capacitor run motor connection diagram. Motor run capacitor. Capacitor starting motor. Capacitor motor connections. Motor start capacitor. Capacitor start capacitor run motor.

                            Capacitor Start-Capacitor Run Basic Winding Schematic & Motor Sample

The capacitor start-capacitor run motor has a starting capacitor in the start circuit, and a run capacitor that is continuously connected in the run winding circuit. This motor is in wide use in industrial, commercial, agricultural applications due to its high starting torque and high overload torque. The starting torque is produced by a starting winding design that includes a capacitor for boosting torque. The running torque is boosted by the run capacitor. The starting switch will disconnect the start winding and capacitor, once the motor reaches about 75% speed. 

There are some drawbacks to the motor design. The switch, and capacitor add cost to the motor, and can be a reliability problem. Capacitor start-capacitor run motors are found on woodworking machinery, high pressure water pumps, air compressors, vacuum pumps and other high torque applications.

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