M.V. Shakursky - Ph. D. (Eng.), Associate Professor, Department of Information and Electronic Service, Volga Region State University of Service (Togliatti). E-mail: M.Sakurskiy@gmail.com V.K. Shakursky - Dr. Sc. (Eng.), Professor, Department «Power Supply and Electrotechnics», Togliatti State University. E-mail: Shakurskiy@mail.ru