TRUSTWORTHY VFD COMMAND PANELS FOR OPTIMIZING VELOCITY COMMAND IN UAE’S INDUSTRIAL PROJECTS

For example, with an average 480 VAC 3-stage input voltage, the DC bus will maintain a charge of about 650 VDC, with precise bus voltage with regards to the line voltage stage and motor load. The main reason the DC bus voltage is higher compared to nominal input line voltage is as a result of root-signify-squared measurements of AC sine waves (the