The New Procedure for Identification of Infrastructure Elements Significance in Sub-Sector Railway Transport

Abstract

The paper focuses on the problem of importance/significance elements evaluation in the railway transport infrastructure sub-systems. It contains main features of the proposed theoretical approach to the significance assessment of the key typological elements of railways infrastructure. The research also attempted to design an effective methodology, which allows assessing the significance of infrastructure objects. The purpose of the multi-criteria assessment of selected sections and typological objects is to select the most significant/important ones from the point of view of maintaining the railway operability. The selection is conducted using the assessment of a section or an object, following the pre-defined criteria. The developed methodology should help to set a group of potential elements of critical infrastructure in the railway sub-sector.

Method for Determining the Degree of Damage to the Stator Windings of an Induction Electric Motor with an Asymmetric Power System

“…The angle of inclination of the ellipse is determined by the formula The phase shift angles of the stator currents were determined from (8). The calculation results are listed in Table 2.…”

“…When evaluating the reliability, it is necessary to establish the influence of the reliability of each element on the reliability of the technical system as a whole and have enough necessary information to predict the period of their trouble-free operation [7]. The main element in most modern technical systems is the electric drive [8].…”