Energy management in electrical motors and its applications is a major research area that allows significant energy saving in industrial plants. It is estimated that 20% of all electrical power is used to drive industrial pumps. According to a study driven by M. Pemberton , around 20% to 50% of the power consumed by electrical motors can be saved through variable speed operation. Using Variable Frequency Drive (VFD) in adjusting the pump speed has proven to be an efficient way to decrease the adjustment losses in pumping processes [2,3]. This can be a significant advantage for the Liquefied Petroleum Gas (LPG) industry, which uses many pumps and cooling fans in its production processes.......Read More.