Contact devices for starting and braking electric motors. Tutorial

In connection with the intensive development of industrial production of power electronics in recent years, it became possible to create a whole gamma of contactless devices that ensure and inhibition of asynchronous electric motors in the context of a significant decrease in negative phenomena inherent in the use of traditional electromechanical equipment.
As a rule, the attached operating manuals contain sufficient information for the connection, launch and initialization of devices, but to conduct a proper choice of their configuration and evaluate the functionality in relation to the specific use, determine the mode of operation, analysis of failure and emergency situations, diagnostics and diagnostics, and diagnostics, and Repair - this information is not enough.
The manual is designed to replenish the deficiency of regular and integrated information on the current direction in drive technology, especially for the layer of specialists who are engaged in the design of electrical equipment of technological complexes, maintenance and repair of existing equipment. A considerable part of the book is devoted to the description of the principles of non -contact devices from the simplest load switches to rather complex intellectual devices of smooth start. The issues of use in industrial equipment and the communal sphere are detailed in detail, including the methodology for choosing and evaluating the effectiveness of use.
The manual can be used by students of technical universities for course and diploma design, as well as specialists of the electrical profile of operational services of enterprises of various industries