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This article presents an analysis of the reliability of asynchronous auxiliary machines (AAM) type NVA-55 electric locomotives «Ermak» in custody Art. Vihorevka (East-Siberian Railway) and Art. Smolyaninovo (Far Eastern) for the 2009-2011 year. Identified the weakest in terms of reliability components and analyzes the main types and causes of these types of faults AAM. One of the research objectives reliability AAM type NVA-55 is to determine the mean time between failures that could prevent failures in the organization of maintenance and repair, as well as extend the life of the machine. Defining the objective mathematical expectation of failure AAM for effective correcting the overhaul life mileage is not possible, since failures are largely have random and not permanent.

The article presents an analysis of the costs of various fuel and energy resources inJSC “Russian Railways” for the period from 2013 to 2017, results the observations on the reduction of the share of diesel fuel in the total resource consumption structure, the analysis of the distribution of the number of failures of diesel locomotive nodes along the route, the distribution of failures of the cooling system nodes along the route and the distribution of failures of diesel locomotive , the values of power consumed to drive the fan of the refrigerator shaft, various diesel locomotives. Calculated fuel flow ratespent on the drive of the fan of diesel locomotives.

It was shown that during operation, under the influence of high alternating loads is change of physical and mechanical properties of the metal, which leads to decrease in toughness. New method for estimate residual resource of components freight cars railway transport is presented. This method is based on the study of structural changes metals during their exploitation. On the basis of monitoring structural changes in metals during their exploitation may be developed effective system estimate of residual resource.

The main damaged knot of traction electric motors of a traction rolling stock is isolation, namely in the field of the basis of front part. The imperfect system of isolation in face part of front windings results in humidity. Also the increased intensity in this zone is the reason of low reliability. Authors propose the system of local insulation encapsulation energy of infrared radiation as life extension activities of electrical machines.

The analysis of the influence of operating modes and the development of the residual life, expressed through thermal wear of the insulation of the asynchronous traction motor. The research subject is to obtain new patterns of change in the residual life of the stator winding insulation, which make it possible to determine the specific life of the winding for each mode of the asynchronous traction motor. The research aim is to create a system for determining and assessing the residual life by developing methods and technical means of monitoring and comprehensive diagnostics, as well as theoretical justification using the method for determining additional thermal wear of the stator winding insulation, taking into account the combined effect of the starting transient process, the long-term allowable load schedule and the maximum allowable temperature values. To determine and assess the possible residual life, the method of sequential influence of starting transients, maximum permissible load curves, as well as long-term overloads at the maximum permissible temperature, taking place under various operating factors during the movement of electric rolling stock, was used. The expediency of determining the function of uneven resource development, which has a monotonic character and is approximated by a linear double exponential and exponential functions, is shown. Specific proportionality coefficients are experimentally determined, which characterize the decrease in the dielectric strength of the insulation with sequential alternation of maximum and long-term permissible loads and maximum permissible temperature values, followed by obtaining an analytical relationship that predetermines the insulation resource. It is shown that the determination and assessment of the residual resource under typical modes practically makes it possible to clarify the timing of preventive measures and predict the expected duration of accident-free operation and forestall the premature failure of the asynchronous traction motor.

Traction electric machines (TEM) of locomotives operating at the Eastern circulation range have insufficient reliability, mainly in terms of insulation breakdown, being one of the most important problems in the operation of electric rolling stock. This article discusses the method of drying wetted insulation by mobile and stationary electric heaters, which are used in the process of repairing traction electric motors of locomotives and electric trains. The problem of operating these installations is their low energy efficiency. With a constant power supply, the heating elements and the fan of the electric heater remain on during the entire drying process of the insulation, which leads to significant energy consumption, and the drying process is recorded by conducting paper workflow, recording the technical condition of the TU-152 locomotive in the log. To eliminate these shortcomings, the authors propose the modernization of the electric heating installation by introducing into it a microprocessor-based system for automatic regulation of the drying process with cloud storage technology. The article presents a block diagram of the proposed automated system, which will implement the three-cycle amplitude-latitude-discontinuous method of energy supply proposed at the FGBOU VO "IrGUPS" in the process of drying the wet insulation of the TED. Currently, cloud storage technologies have found their application in companies of various kinds of activity, it is being actively improved due to the constant increase in the amount of information that needs to be stored or transferred, and in addition, the user can have access to it from anywhere in the world. In recent years, the world has noticeably increased interest in the application of this technology in railway transport. As part of the modernization of the installation, it becomes possible to remotely control its operation, as well as store and process the information received on the drying process of wetted insulation.

Results of the analysis of normative and legal documents of the Russian Federation, and also the internal normative documents establishing the main target indicators and requirements to activities for energy saving in «Russian Railways» Holding are given in article. Need of carrying out updating of Power strategy of «Russian Railways» Holding and revision of the list is proved by the mechanism of its realization.

Rheostat trials must be carried out after repairing of a diesel locomotive. As a rheostat it is used a complex of equipment and it is taken a separate building for the staff, which must be situated at a set distance from office buildings. In order to keep the building for the staff warm central heating is used. The net cost is extremely high and transit heat losses are often comparable with effective consumption of the heated building. In this work the possibility to utilize the secondary energy resources for heating the stations is considered where rheostat trials are supposed to be carried out. It is noticed in separate depots that the measures of heat energy utilization from load rheostats have already been applied, but they are not widespread. There are external restrictive factors which limit the adoption of heat-recovery installations and also technical and organizational factors as well. There have been proposed principal measures which could be considered in case of the adoption of heat-recovery installations. Calculations are performed by heat energy generation by a rheostat during typical trials of diesel locomotives TEM2 and heat quantity of heat-transfer agent in typical load water rheostats. It is proposed that the plan to utilize secondary energy resources in low temperature heating systems will be effective. It is also mentioned the utilization of low temperature heating systems has many advantages. The required heat energy generation of heat-recovery installation for each month of the year have been calculated, and Station Omsk depot is one of the example where these calculations have been performed. It is noted required quantity of trials for heat loss compensation coincide with station operating schedule of rheostat trials in the majority of depots and would like to apply the indicated trial method. The calculated economical cost of these measures along with capital costs for the speed of completing the building should be considered when calculating the total cost of the station over the open rheostat tank.

The article deals with the possibility of energy utilization of exhaust gases of diesel-generator sets of locomotives during load tests. The calculation of the amount of heat carried out during tests with exhaust gases. Possible variants of heat utilization with the use of various heat exchangers are considered.

The used liquid wash solutions utilization problem in railway depots of Russian Federation was overviewed. Postulated, that it is important to solve ecological and energy efficiency problem together on railways. Authors shows, that in this moment level of development and using resource saving technology in railway depots is too low. Economical, juridical and technological aspect of this problem was analyzed. Shows, that in present conditions we need to treat wash solutions in the closed water recycling process. Simultaneously waste products must be concentrated and then used, taking into consideration, that concentrated waste products contains flammable oil-products. Proposed to combust it and generate heat energy. Taking review of oil-containing waste products concentration and combustion methods. Shows, that heat energy can be used for grows up energy efficiency of railway depots. Described theoretical basics, results of carried experiments, and economic effect was estimated. It`s proved, that proposed technology is useful and can be realized. Preferred construction of washing machines and waste treatment facilities are recommended. Ways of next research work are selected and proved.

With the advent of new series of locomotives, the development of heavy freight trains, the increasing speeds of passenger trains, the introduction of innovative technical means and technologies, the degree of influence of various indicators on energy consumption is redistributed. The aim of the article is to develop a methodology for monitoring the efficiency of locomotives when changing the set of operational factors. This will make it possible to more accurately determine the estimated change in specific energy consumption, which in turn will increase the objectivity of the assessment of the causes of changes in the energy intensity of transport and will help to reduce energy losses.

The article is devoted to the development of a methodology for monitoring the alignment and radial runout of the inner cylindrical seating surfaces of locomotive motor-axle bearings. The main reasons for the wear of the working surfaces of the bearings and the consequences of the influence of the clearances in the interfaces of the plain bearings and the axles of the wheelsets on the increase in the intensity of wear of the parts and the deterioration of the dynamic characteristics of the running gear of the locomotive are listed. The paper presents a basic diagram of the basing and control of deviations from alignment and radial runout of the inner cylindrical surfaces of bearings, describes the design and principle of operation of a special control device for measuring these deviations. The purpose of the work is to substantiate the feasibility of monitoring deviations from the shape and location of surfaces during the repair of motor-axial bearings. The paper describes the sequence of steps for measuring the alignment and radial runout of bearings and the interpretation of the measurement results. The features of the design of the control device are considered, the advantages of its use are listed in comparison with the existing analogues of the devices used to control the alignment of the holes of the body parts located on the same axis. At the same time, it was found that the control of alignment and radial runout must be carried out in order to assess the possible degree of misalignment of the traction motor frame and the axle of the wheelset of the locomotive after repair. Thus, the conclusions obtained confirm the need to tighten quality control of the restoration of locomotive motor-axle bearings by introducing into the production process the operations to control the alignment and radial runout of motor-axle necks and motor-axle bearing liners made of lead bronze, tin or lead-tin babbits.

The factors affecting the operational reliability of the assembly platform of a rail service car maintaining the repair and installation on the railways are considered in the paper. An assessment and analysis of a system of quantitative indices of reliability is performed, the methods for their separate determination by mechanical equipment and hydro and electrical equipment is described. The strategy of maintenance and repair combined with the use of methods and means of a modern diagnostic system is considered; it ensures the estimation of the object reliability during its design, operation and repair.

A significant share of JSCo «Russian Railways» expenses falls on the purchase of diesel fuel and electric power for train traction. In this connection, the task of ensuring rational consumption of energy resources acquires special importance. Its solution is impossible without a well-functioning system for planning and forecasting the energy efficiency of locomotives. The article proposes a method for predicting specific energy consumption (SEC) for train traction, based on determining predicted values of transportation work and fuel and energy resources consumption by extrapolating time series, which consists in spreading the trends in changes in the values established in the past to the future period. A distinctive features of the developed method is the determination of seasonality indices and consideration of the rhythm of changes in the indicators. In cases where the forecast period includes months of the first or fourth quarters, a formula is proposed for determining the forecast value of the SEC, taking into account the influence of the atmospheric air temperature. The calculations performed showed that the application of the proposed method for structural divisions with different volume and nature of transportation work and the level of the SEC ensures a sufficiently high accuracy of train traction energy cost forecasting. The method is included in the Methodology for Analysis and Prediction of Fuel and Energy Resources Consumption for Traction of Trains developed by OmGUPS and implemented in the railroad network of the Russian Federation.

The article discusses issues of simulation modeling of technological processes of repair of rolling stock components. A model of the technological process of repairing a trolley (mod. 18-100) of a gondola car in an ARENA environment is given.

The paper discusses the design enterprises for repair in dvizhnogo of railway vehicles, analyzes contemporary experience, are reproduced the main criteria for assessing the quality of design solutions and provides a methodology to optimize them with the use of mathematical modeling.

Method of calculation of reliability of rails are presented in article. Research of refusals and durability of rails on two directions of the West Siberian management of infrastructure for sites of a way with different operational characteristics is conducted. Dependence of a gamma percent resource of rails on axial loading of cars and the plan of a way is received. Conclusions about a possibility of reaching of the passed tonnage of rails in 1500 million tons gross are given.

Improving the efficiency of the main activities of JSC «Russian Railways» is currently a relevant and significant issue. According to the provisions of the company main strategic documents, the key performance indicators for the locomotives are to be improved by 2025 and continue so until 2035. The paper deals with the analysis of problems and proposals for improving the management of electric locomotives that carry most of goods on the railways of the Russian Federation. The paper analyzes the possibilities to improve the main operational indicators of locomotive complex by increasing the efficiency of the organization of electric locomotives operation. One of the key performance indicators of the locomotive complex is the average daily performance of electric locomotives. To improve this indicator, it is necessary to increase the amount of work per unit of electric traction rolling stock. The given paper proposes two ways to achieve this. Firstly, it is the qualitative improvement of advantageous locomotives, increasing their traction properties; secondly, the improvement of the technology used to manage traction systems. The paper shows that in order to achieve the company targets, JSC «Russian Railways» has to necessarily implement the second solution, namely, introduce and improve the polygon technologies for managing traction resources and switch to extended railroad hauls of electric locomotives. The paper presents the main requirements and conditions for implementing these technical solutions.

The article deals with the consumption of fuel and energy resources, including a significant proportion of these resources spent on the organization of electric heating (773.7 million kWh). It was noted that until recently in the reporting of JSC « Russian Railways » there were two different approaches in determining the actual volume of electric energy consumed by electric heating equipment, not equipped with individual metering devices based on the calculation-analytical and calculation-statistical methods. It was found that the results of calculations by both methods have a significant deviation between them (up to 100 %). The purpose of the study is to determine a unified approach that allows to accurately record the consumption of electric energy in these conditions. The characteristic features of each of the applied methods were analyzed, comparative studies on a number of objects of four Railways (October, Sverdlovsk, South Ural, East Siberian), characterized by different climatic characteristics were carried out. At the same time, studies were carried out on the applicability in practice for the regulation of fuel and energy resources of the automated system « Stationary energy » . According to the research results, the value of the deviation of the actual consumption of electric energy from the calculated for both applied methods is shown. A method for determining the actual consumption of electric energy for heating on the basis of a preliminary calculation of the allowable volume consumption of thermal energy with subsequent conversion into electrical energy is proposed and confirmed by tests. The results obtained were adopted when updating the « Methods of analysis and planning of electricity consumption for non-traction needs in JSC « Russian Railways » , approved by the order of JSC « Russian Railways » from 22.08.2018 № 1866p in terms of determining the resource requirements for heating. Based on the results, changes were made to the procedure for filling in the data in the corporate management reporting of EO-10U.