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A kinematical system of the test bench for experimental investigations of the frequency asynchronous driving gear is consider. Description of the kinematical system and mathematical model on the assumption of back-to-back is produces. As well as example of construction of the mechanical data family on basis of experimental data taking into account of the inner loss in the system is produces. Dynamical model of the asynchronous motor and results of the modeling in matlab simulink is produces.

Under consideration the method to determine the positive and negative sequences of fundamental voltage and current harmonic in the three-phase power supply systems, based on the Clark transformation and adaptive filtering.

The article describes two methods to estimate the rotor speed of the induction motor using special spectral components generated by the engine design. After you search for these components is possible to estimate the rotor slip. The aim is to compare these methods under different engine loads and to determine the most accurate method. The result is program algorithm for determining the rotational speed of the rotor of an induction motor, which can be used for a variety of practical tasks that require precise definition of speed, but there is no any access to moving parts to install the speed sensor or the use of sensors is undesirable revolutions.

The article describes the structural scheme, the algorithmic basis, functional composition and some technological characteristics of the hardware and software of information system of operating control parameters of the electric power in the traction power supply network, structural peculiarities of information-measuring complex, the hub characteristics of the data collection substation, type of equipment used in information and computational complex structure of servers for processing and storage, data volumes and characteristics of the necessary communication lines.