MAJOR VFD PANELS FOR ENHANCING MOTOR SPEED MANAGEMENT IN UAE

For instance, with a typical 480 VAC 3-phase input voltage, the DC bus will keep a charge of about 650 VDC, with precise bus voltage depending on the line voltage amount and motor load. The rationale the DC bus voltage is increased compared to nominal enter line voltage is mainly because of the root-suggest-squared measurements of AC sine waves (th