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ELECTRICAL MACHINE DESIGN
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Design is defined as a creative physical realization of theoretical concepts. An electric machine is an electro-mechanical energy conversion device, which converts mechanical energy into electrical energy and vice versa. When the machine converts mechanical energy into electrical energy it is called a generator. When the machine converts electrical energy into mechanical energy it is called a motor. A part of the energy is converted to heat. This energy is lost and cannot be recovered. An electrical machine can be designed to operate either as a generator or as a motor. Faraday s law of electromagnetic induction states that e.m.f. induced in a closed electric circuit is equal to the rate of change flux linkages. There are different specific tasks to be performed by the electrical machines. The design of electrical machines/equipment for specific applications is based upon the application of theoretical scientific concepts, technology, and related inventions. The suitable design depends upon the proper adjustment of the iron portion, copper, air gap, insulation, ventilation, and cooling of the machine.
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