current

The principle of creating a "smart" electricity meter in electric traction networks with stochastic electromagnetic processes

Voltage and current are sharply variable random (stochastic) processes in traction networks of DC electric transport systems. As a result, electronic and hybrid electricity meters used in electric systems measure electric power with a large relative error that significantly exceeds that of their accuracy class. In this paper the principle of developing smart meters for accounting the electricity transmitted from traction substations to electric rolling stock through a traction network is proposed.

The analysis of autonomous electric power supply system, based on asyncronised generator with three-phase modulator with one star scheme during complex loading

Investigation of electromagnetic and electromechanical processes, which take place in the autonomous power supply system based on asynchronised generator with three phase modulated exciter, was conducted by means of mathematic experiment. The processes in terms of work suitableness of power supply system during its work at the junction of asynchronous motors and active-inductive load were analysed. Regularities of electromagnetic and electromechanical processes, depending on the schedule of consumers’ work and system of commutator management parameters were determined.

Residual stresses from gravitational stress: fpreliminary estimations of their rates based on geological data

The method of the research relates to the field tectonophysics. The study of tectonic stress has always been the most important task of tectonic research. You can say that Tectonophysics began to flourish after the mass measurement of stress in-situ methods in mining and creation of stress reconstruction algorithm in natural geological data sets of slip faults. Data Mining showed a large predominance of horizontal compression environments in the areas of uplift and shields, and the prevalence of certain environments the horizontal extension in the crust basins and plates.