What Is a Motor Capacitor?

Starting capacitor refers to AC electrolytic capacitors or polypropylene or polyester capacitors used to start single-phase asynchronous motors.

Starting capacitor is used to start single-phase asynchronous

To make the single-phase motor rotate automatically, a starting winding can be added to the stator. The starting winding is spatially separated from the main winding by 90 degrees. The starting winding should be connected in series with a suitable capacitor so that the current between the starting winding and the main winding is between

Single-phase motor running capacitance calculation formula: C = 1950I / Ucos (micro method)

formula:

I: motor current, U: power supply voltage; cos: power factor, take 0.75, 1950: constant

Starting capacitor is generally calculated as 1-4 times of running capacitor capacity ^[1] .