Identification of electric traction in the urban electric transport system

Abstract

The article presents the results of a systematic review of the basis of formation and implementation of electric traction in the urban electric transport system. Its complexity is determined by the fact that various technical, technological, industrial and other subsystems and complexes are included in it, whose main purpose is to satisfy the needs of the population in transportation. Determining the basis for the formation and implementation of electric traction in the system of urban electric transport is a condition for finding methods and means of improving its efficiency, including the energetic one. Based on the proposed approach, urban electric transport was interpreted as a complex production and technical system, which allowed identifying electric traction as an electrical engineering complex, and at the same time as a technological system, and as a technological process of functioning of this system. The results of the study should be interpreted from the standpoint of synergistic ideas that will contribute to the development of the general theory of electric traction in the context of modern scientific methodology.

Testing digital instruments and power systems devices

“…A relatively small increase in the cost of testing support can significantly reduce the probability not to detect failures of digital components of relay protection devices based on digital integrated circuits, microprocessorbased components and microcomputers [9,10,11]. As a result, the reliability of operation of digital components of relay protection devices and, generally, power systems increases.…”