Learn Reputable VFD Handle Panels for Expense-Successful Motor Speed Regulation
As an example, with an average 480 VAC 3-phase input voltage, the DC bus will keep a charge of about 650 VDC, with genuine bus voltage dependant upon the line voltage stage and motor load. The key reason why the DC bus voltage is increased as opposed to nominal enter line voltage is due to root-imply-squared measurements of AC sine waves (the “pe