Air technology applications covering compressed air and vacuum take a significant share of the electrical consumption. Air compressors, vacuum pumps and blowers typically are running for a significant amount of hours per day. Since these applications are subject to variable demands make these applications suitable for high efficiency speed controlled motors controlled with drives.
Air blower generally uses centrifugal force to propel air forward. This type of load coupled with speed control and long running hours is a prime target for efficiency improvement and energy consumption.