Our expert Hatnan Olivarria, outlines the key features of Eaton’s SC9000 family of medium-voltage variable frequency drives (VFD) responsible for delivering it’s superior reliability. He explains how calculating MTBF, the basic measure of a system’s reliability, has limitations. He offers several other design aspects that are not included in that calculation but have an effect on reliability and should be considered when selecting a medium-voltage VFD.