SUPERIOR VFD PANELS FOR MOTOR SPEED REGULATION IN UAE INDUSTRIAL CONFIGURATIONS

As an example, with a standard 480 VAC 3-period enter voltage, the DC bus will keep a charge of about 650 VDC, with actual bus voltage depending upon the line voltage level and motor load. The explanation the DC bus voltage is increased as opposed to nominal enter line voltage is as a result of root-indicate-squared measurements of AC sine waves (t