Improve Industrial Motor Speed Command with Major VFD Panels from UAE Suppliers
For instance, with a standard 480 VAC 3-phase input voltage, the DC bus will hold a demand of about 650 VDC, with actual bus voltage according to the line voltage level and motor load. The key reason why the DC bus voltage is larger than the nominal input line voltage is due to the root-suggest-squared measurements of AC sine waves (the “peaks”