Rotating electrical machines permeate all areas of modern life at both the domestic and industrial level. The average modern home in the developed world contains 20-30 electric motors in the range 0-1 kW for clocks, toys, domestic appliances, air conditioning or heating systems. Modern cars use electric motors for windows, windscreen wipers, starting and now even for propulsion in hybrid vehicles. A modern S-series Mercedes-Benz car is reported to incorporate more than 120 separate electrical machines.
Introduction to condition monitoring, Page 1 of 2
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