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The article deals with the suitability of wave response method aptitude for traction engines turn-to-turn armature coil insulation testing and development of testing coil adequate model for further researching of physical processes occurring while testing. The method of wave response readout in armature coil reported is described in the article. The equivalent circuit of armature coil relating to wave response method is given. The wave responses got during physical model testing, simulating in MATLAB are shown. The real and simulating results analysis allows you to approve the proposed equivalent circuit adequacy. This equivalent circuit may be used for simulating of traction engines insulation fails relating to wave response method.

This article is devote to the development of software for analyzing and transforming data from studies of the collector surface traction motors using a device of control profile commutator PKP-4M. The use of this computer application during the processing of the experimental data will improve the reliability of the control profile of the commutator, and to calculate the main diagnostic parameters characterizing the effect of the profile on the commutation process.

The results of infrared studies of the process of heating parts collector and brush assembly dc electrical machines. Proved diagnostic parameters for assessing the technical condition of the collector-brush assembly of electric motors: the ratio of changes in the elevation of temperature in time and space.

Each of the proposed circuits is composed of inverters. These devices are sources of non-sinusoidal voltage, whose frequency can vary within a wide load range of the test engine. Therefore, to measure the power in such conditions requires either the use of special complex of hardware-software complexes to perform the direct measurement or the development of indirect methods for determining capacity. Such methods proposed for each of the schemes. The essence of the developed methods consists in a preliminary experimental determination of the dependency of the losses in the rectifiers and rectifier-inverters circuits from the power supplied to him. These dependencies are further processed during the test, using only the General-industrial electric meters that measure power consumed by the frequency Converter, and the power consumed (generated) asynchronous motors is determined by the indirect (calculated) by. On the other hand, pre-experimentally received dependence of losses in frequency converters from power consumption trolled (generated) asynchronous motor energy, you can calculate the power consumed by the frequency Converter from the network in a wide range of loads that can be used in the design of testing stations for asynchronous traction motors.

The article shows the relevance of applying the method of mutual test load of asynchronous traction motors of railway rolling stock. On the basis of the recommendations of existing standards in testing of asynchronous motors is made up of a sequence of acceptance testing of asynchronous traction motors provided in the form of an algorithm. In line with the scheme proposed for testing procedures on the use of the basic equipment of the circuit. The analysis of the main types of tests, the comparison of the classical means for testing the functionality of the inverters eliminated the need for additional DC sources in determining the resistance of the stator windings, additional brake and step-down transformers during short circuit and experience to carry out simultaneous testing of two induction motors increased speed at the stand of mutual load.

The aim of this article is an advancement of state estimation process of traction machines insulation. Diagnosis method brief analysis is given. The structure of traction machines insulation state automated full-service diagnosis system developing is offered, as well as the operation algorithm of the system. The algorithm of testing results estimation based on diagnosis characteristics group is given.