Results 1 to 10 of about 220,761 (282)

Resonance in alternating current traction network [PDF]

open access: yesОмский научный вестник, 2020
The article provides an analysis of electromagnetic processes in an alternating current traction network of electric railways taking into account its distributed parameters that determine wave processes, which are one of the causes of resonance ...
T. V. Kovaleva   +2 more
doaj   +2 more sources

The method of calculating power supply for monitoring and metering devices of DC traction network based on serial chain of voltage converters [PDF]

open access: yesОмский научный вестник, 2021
For organization of power supply of devices for monitoring and accounting of electric energy for railway traction networks of direct current, the topology of the power source based on a serial chain of voltage converters can be used.
Yu. V. Plotnikov
doaj   +1 more source

Power supply for monitoring and metering devices of DC traction network based on serial chain of voltage converters [PDF]

open access: yesОмский научный вестник, 2021
When designing devices for monitoring and accounting of electric energy for railway traction networks of direct current, one of the main tasks is to create a source for their power supply.
Yu. V. Plotnikov
doaj   +1 more source

Determination of the rail-to-earth transition resistance of the ballastless track and influence of the resistance on the current spreading in the subgrade

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The rail-to-earth transition resistance is an important parameter of electrified railways, which directly effects the electrical safety level of the traction network and the potential distribution in the upper structure track area.
A. B. Kosarev   +4 more
doaj   +1 more source

Application of ETAPTM eTraXTM software package for digital simulation of distribution network that feeds an AC traction power supply system [PDF]

open access: yesE3S Web of Conferences, 2020
Voltage unbalance in power systems feeding AC traction power systems is a worldwide known problem. One of the main aspects of this problem is the negative effect of voltage unbalance on motor loads causing operating problems and economic damage.
Tulsky Vladimir   +8 more
doaj   +1 more source

Dynamic rating method of traction network based on wind speed prediction [PDF]

open access: yesArchives of Electrical Engineering, 2022
The operating temperature of the transmission line in the traction network is affected by geographical and climatic factors, especially the wind speed. To make better use of the thermal stability transmission capacity of the traction power supply system ...
Zhaoxu Su   +3 more
doaj   +1 more source

Calculation of specific operating modes of relay protection for AC traction networks

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2020
Relay protection of traction networks against short-circuit currents in alternating current sections should have both selectivity and speed. However, in areas with an increased probability of burnout of contact wires during a short circuit, selectivity ...
K. S. Subkhanverdiev
doaj   +1 more source

Implementation of regenerative braking on the AC locomotive with a mono phase reversible voltage converter

open access: yesВестник Научно-исследовательского института железнодорожного транспорта, 2022
Introduction. The authors analyse the problem of implementing regenerative braking on the AC locomotive with a monophase reversible voltage converter.Materials and methods.
V. A. Kuchumov, I. N. Nikonchuk
doaj   +1 more source

Electrical characteristics of new three-phase traction power supply system for rail transit

open access: yesRailway Engineering Science, 2022
A novel three-phase traction power supply system is proposed to eliminate the adverse effects caused by electric phase separation in catenary and accomplish a unifying manner of traction power supply for rail transit.
Xiaohong Huang   +6 more
doaj   +1 more source

Research on Fault Location for Direct Traction Network [PDF]

open access: yesJournal of Physics: Conference Series, 2022
Abstract In view of the low accuracy of existing fault location methods for traction networks with longer power supply lines, the equivalent model of the traction network for double-track electrified railways is calculated, and the power supply lines and contacts are introduced on the basis of traditional traction network fault location ...
Defang Li   +5 more
openaire   +1 more source

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