The PFI panel uses capacitors to improve the power factor by adding a leading current to the system, which compensates for the lagging current caused by inductive loads such as motors, transformers, and other equipment.
The PFI panel typically includes a set of capacitors, a control system, and metering devices. The capacitors are connected to the electrical system to add a leading current and improve the power factor. The control system monitors the power factor and activates or deactivates the capacitors as needed to maintain a desired power factor. Metering devices such as ammeters and voltmeters provide real-time monitoring of the power factor and other electrical parameters.
The PFI panel also includes protection devices, such as overcurrent protection, earth-fault protection, and residual current protection, that are designed to protect the electrical system and equipment from damage in case of faults or overloads.
In summary, Power Factor Improvement Panel (PFI) is a device that uses capacitors to improve the power factor of an electrical system by adding a leading current to the system. It typically includes capacitors, control system, metering devices and protection devices to monitor the power factor and protect the electrical system from damage. This panel is used in commercial and industrial settings where a high level of power factor is essential to reduce energy costs and increase the efficiency of the electrical system.