DETERMINATION OF A NUMBER OF PARAMETERS OF ELECTRIC DRIVES OF CRITICAL EQUIPMENT OF RAILWAY TRANSPORT ENTERPRISES AS INPUT DATA FOR MODELING THE STABILITY OF THEIR OPERATION

Purpose. Ensuring a reliable transportation process by rail directly depends on the technical condition of the traction rolling stock and its timely supply for the performance of train work. Maintaining railway rolling stock in a technically sound condition requires an appropriate material and technical and production base of locomotive depots and repair enterprises. Servicing traction rolling stock in the scope of technical maintenance and current repairs involves equipping traction units with fuel and lubricants, water and sand. For this purpose, appropriate units equipped with specific technological equipment are organized in locomotive depots. As a rule, such technological equipment has an electric drive built on the basis of asynchronous electric motors. Powering these electric motors with low-quality electric energy or unstable electric energy creates potentially negative conditions for their long-term operation. In order to further apply methods of predictive modeling of the stability of the operation of electrical equipment of locomotive equipment points, a thorough analysis was conducted and the parameters of the electric drives of the most critically important equipment were determined. Methods. Comprehensive analysis of technical equipment and technology of railway transport. Results. It was established that the most labor-intensive among all the processes of equipping rolling stock is the process of equipping with sand, which is associated both with the specifics of sand, both as a working medium, and with increased requirements for its purity and humidity. A list of critically important electrical equipment was identified to ensure the technological process of preparing, transporting, storing and issuing sand to rolling stock. The parameters of the electric drives of the compressor unit, smoke exhausters, the furnace blowing device and the movement of the rotary drying drum were established. The obtained data were analyzed. Practical significance. The results obtained allow to form unified series of capacities of electric drives of equipment of locomotive depots and repair enterprises of railway transport, which can be used as initial data for prognostic modeling of stability of operation of this equipment when they are supplied with electric energy with low qualitative and quantitative indicators. Also, on the basis of the obtained results, a number of recommendations can be developed regarding the organization of uninterrupted power supply of such non-traction consumers of railway transport using energy from renewable sources. Also, the research material can be used in the implementation of measures to compensate for the negative impact of quantitative and qualitative indicators of supply electric energy on the reliability of non-traction consumers of railway transport.