Results 1 to 10 of about 33,600 (258)
Resonance in alternating current traction network [PDF]
Омский 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
A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism
Energies, 2020 In railway electrification systems, the harmonic impedance of the traction network is of great value for avoiding harmonic resonance and electrical matching of impedance parameters between trains and traction networks.
Ruixuan Yang, Fulin Zhou, Kai Zhong
doaj +3 more sources
Energies, 2019 When electric multiple units (EMU) pass the neutral zone, the traction transformer may generate sympathetic inrush, which will cause a malfunction in the transformer differential protection.
Zhiyong Li +3 more
doaj +3 more sources
Вестник Научно-исследовательского института железнодорожного транспорта, 2019 When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of
Yu. I. Zharkov +2 more
doaj +3 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]
Омский 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]
Омский 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
Вестник 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
Research on Fault Location for Direct Traction Network [PDF]
Journal 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
Application of ETAPTM eTraXTM software package for digital simulation of distribution network that feeds an AC traction power supply system [PDF]
E3S 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
Calculation of specific operating modes of relay protection for AC traction networks
Вестник 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