In a textbook for a graduate course in such fields as electrical, mechanical, computer, and chemical engineering, Amin and Rehmani discuss direct current machines. They present the principles of operation, construction details, and functions of each part and each type, and describe the internal interaction of magnetic fields. Among their topics are the principle of a direct current generator, armature reaction, parallel operations of direct current generators, the performance of direct current machines, commutation, applications, and stepper motor.
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