LARGE-OVERALL PERFORMANCE VFD PANELS FOR STRENGTH-EFFICIENT PACE REGULATION IN UAE

As an example, with an average 480 VAC three-stage enter voltage, the DC bus will keep a cost of about 650 VDC, with true bus voltage based on the line voltage stage and motor load. The reason the DC bus voltage is bigger as opposed to nominal input line voltage is mainly because of the root-imply-squared measurements of AC sine waves (the “peaks