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...ing motor efficiency, that is only one fact of reducing the cost of the entire drive power system. An evaluation that considers how the motor, controls and drive system work together –and how they influence each other-can make it possible to significantly reduce the cost of purchasing, operating and maintaining the equipment. For example, focusing solely on the motor efficiency may yield a one to five percent reduction in operating cost, but improvements that take into account the entire drive power system may provide savings of 50 percent or more. The specific purpose of this design is to reduce the energy loss of a drive power system by undertaking critical evaluation of the entire drive power system and combining good engineering with efficient components. The report begins by introducing an inefficient drive power system. This is followed by listing some important aspects of des...