The subject matter in the text is presented in the sequence traditionally followed in the Soviet Union. It starts with transformers, passes on to induction and synchronous machines, d.c. machines, and concludes with a.c. commutator machines. Separate chapters are devoted to a general theory of electrical machines, machine design and engineerIng, and transients in electrical machinery.

The electromagnetic processes that take place in electrical machines are examined from the view-point of electro-mechanical and mechanoelectrical energy conversion. With such an approach, it has been possible to extend the mathematics used to both conventional and any other conceivable types of electrical machines.

In addition to electromagnetic processes, consideration is given to the thermal, aerodynamic, hydraulic and mechanical processes associated with electromechanical and mechanoelectric energy conversion.

In view of the importance attached to the above accompanying processes, the text discusses general aspects of machine design and engineering.