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This paper reports on methods for the analysis of electrical machines by combined electromagnetic and thermal models using commercial software which can be an aid to the design of these machines. Examples using a brushless permanent-magnet motor and an induction motor illustrate the available tools and possible techniques. It reviews the different loss calculations, particularly iron losses, and also the thermal models that can be used, including steady state and transient (where thermal capacitances have to be included). This paper will be useful to an engineer in an industrial design office to illustrate the possibilities that are now possible.