HIGHLY DEVELOPED VFD COMMAND PANELS FOR COST-EFFICIENT MOTOR SPEED OPTIMIZATION IN UAE

For instance, with a normal 480 VAC three-section enter voltage, the DC bus will hold a charge of about 650 VDC, with real bus voltage based on the line voltage level and motor load. The rationale the DC bus voltage is bigger compared to nominal enter line voltage is due to root-mean-squared measurements of AC sine waves (the “peaks” of a 480 V