Automatic Power Factor Correction or APFC panels are electrical control panels used for this purpose. Being efficient, these panels maintain the power factor of an electrical system by automatically regulating the reactive power (kVAR) required by inductive loads.
ACDB full form is AC Distribution Board or AC combiner box and DCDB means DC Distribution board or array junction box. Solar acdb mostly install after the solar inverter but before connected load or LT panels. ACDB and DCDB Working.