APFC Panel (Automatic Power Factor Correction Panel) – Description An Automatic Power Factor Correction (APFC) Panel is an electrical control panel designed to automatically improve and maintain the power factor of an electrical system. It continuously monitors the power factor and switches capacitor banks in or out as required to compensate for reactive power, helping keep the power factor close to unity (typically 0.95–0.99). This improves energy efficiency, reduces power losses, and helps avoid utility penalties associated with low power factor. Main Functions Automatically monitors system power factor. Connects or disconnects capacitor banks based on load changes. Reduces reactive power demand. Minimizes electricity bill penalties due to poor power factor. Improves voltage regulation and overall system efficiency. Increases the life and performance of electrical equipment. Major Components APFC relay/controller Capacitor banks Capacitor-duty contactors or thyristor switches Current Transformer (CT) Circuit breakers (MCCB/MCB) Fuses and protection devices Busbars and indicating lamps Cooling and ventilation system Applications APFC panels are widely used in: Manufacturing industries Commercial buildings Hospitals Shopping malls Hotels Data centers Textile, chemical, and pharmaceutical plants Large motor and transformer installations Benefits Lower electricity costs Avoids power factor penalties Reduces system losses Improves voltage stability Releases transformer and cable capacity Extends the life of electrical equipment Fully automatic operation with minimal manual intervention