A 12-step Power Factor Regulator (PFR) is a device that regulates capacitor banks to increase an electrical system's power factor. To maximize reactive power compensation, the Selec brand provides a range of power factor controllers with automatic step switching. Essential Elements of a Select 12-Step Power Factor Regulator: 

 Automatic step switching: This feature turns on or off capacitor banks in response to power factor readings in real time.

12-step control: By controlling up to 12 capacitor banks, this feature enables precise correction. 

Display & Monitoring: An LCD/LED screen shows the step status, power factor readings, and alarms. 

Harmonic analysis: To avoid overcompensation, certain models identify harmonics.