Learn Large-High-quality VFD Panels for Industrial Velocity Command by UAE Professionals
For instance, with an average 480 VAC 3-section input voltage, the DC bus will hold a charge of about 650 VDC, with actual bus voltage dependant upon the line voltage level and motor load. The key reason why the DC bus voltage is increased when compared to the nominal input line voltage is a result of the root-mean-squared measurements of AC sine w