Responsible VFD Manage Panels for Productive Pace Command in UAE Industries
As an example, with an average 480 VAC 3-phase enter voltage, the DC bus will keep a charge of about 650 VDC, with actual bus voltage according to the line voltage stage and motor load. The main reason the DC bus voltage is bigger in comparison to the nominal enter line voltage is due to the root-indicate-squared measurements of AC sine waves (the