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The results of the investigations on the study condition movement of high-speed trains with active and passive systems inclination of body of the carriage in the curved directions of railway track with the registrations of the organizes in the movement and exploitation of the electric trains «Afrosiyob» in the direction Tashkent - Samarkand of the Uzbek railway track are presented are presented.

In article the possibilities of decrease in energy consumption on draft at the movement of electric trains in the conditions of a flat profile of West Siberian Railway due to shutdown of traction section of an electric train and rational distribution of time of the course in all direction of the movement are considered. During the calculating and creation of schedules of the train for site is used an analytical method of the solution of the differential equation of the movement of the train. For the analysis of optimum schedules of the train at each stage of their modeling an inspection of calculations which allows to guarantee reliability of the received results is car-ried out. For definition of potential opportunities of decrease in energy consumption on draft at traffic control of an electric train the concrete trip of an electric train of ED4M along a route Omsk - Irtyshskaya is analysed. Settlement schedules of an electric train are provided in the considered trip, and also with shutdown of one traction section. Average is defined by standard means of system of computer modeling on the way the electric train speed, dispersion of speed on the way, energy consumption. The received size of energy consumption for draft with the disconnected traction section is much less than energy consumption on a real trip. Rational distribution of time of the course of the electric train in all direction of movement from a condition of preserving time of its arrival also allows to reduce an electric power expense on draft by the terminal station. Based on consumption data of the electric power in general possible economy of energy costs on draft due to application of the offered methods is determined by Omsk TCh-31 depot.

In this article, the authors have studied the electromagnetic processes of an inverter based on thyristors and IGBT transistors of an AC electric train in the regenerative braking mode. To accomplish this task, a method was used to compose instantaneous replacement schemes and systems of differential equations corresponding to a certain time interval of the rectified voltage diagram and the currents of the inverter arms. On the basis of the study were given the disadvantages of thyristor inverter and the advantages of transistor.

The results of the train traction electricity consumption forecasting, which were obtained on the basis of existing methods and the interval regression method, was analyzed. The errors of forecasting according to three methods compared with the real electricity consumption were determined. The authors put forward the software for calculating the predicted values of electricity consumption for train traction, taking into account the operational indicators of the electrified railroad under conditions of uncertainty in the initial data.

In the article the author presents a logical-linguistic model, providing a sufficient depth and completeness of diagnostics with fulfillment of all required testing instructions and standards. Diagnostic features for every required testing were determined in order to build the suggested model. The results of a diagnostic model development were applied and successfully tested on various types of electrical sections