PREMIUM VFD PANELS FOR VITALITY-SAVING MOTOR SPEED MANAGE IN UAE

For instance, with a standard 480 VAC 3-period enter voltage, the DC bus will maintain a demand of about 650 VDC, with real bus voltage depending on the line voltage level and motor load. The rationale the DC bus voltage is bigger compared to nominal input line voltage is mainly because of the root-imply-squared measurements of AC sine waves (the �