The application of high-efficiency motors for fan mill drives

The paper describes the possibility of using high-efficiency motors to fans mill drives. Criteria for economic analysis of replacing standard motors by energy-saving ones are quoted. The results of this analysis are presented. Mathematical models of induction motors for dynamic tests are briefly described. Simulation and measurement results of start-up for standard and energy-saving motors used in fans mill drives are given. Advisability of such a replacement is presented in the paper conclusion‥