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The Impact of Current and Thermal Loads on the Properties of Copper Contact Wires Used in Railway Transport Systems. [PDF]
Materials (Basel)Mańka A, Aniołek K, Hełka A, Rak J.
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Influence factors analysis of rail potential in urban rail transit
Microelectronics Reliability, 2018Abstract Rail potential is affected by a variety of influence factors in the urban rail transit. This paper proposes a state space average (SSA) model of the traction power system to explore the effects caused by the traction network resistance, inductance, capacitance and rail-to-ground resistance.
Jingda Gu +2 more
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Negative Impedance Converter for Reducing Rail Potential in Urban Rail Transit
2020In conventional traction power supply system (C-TPSS), the traction current returned to the substation through the running rail. Running rail current leaks into the earth forming stray current, which inevitably serious corrosions on the buried metals and endangers personal safety.
Wei Guo +3 more
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Stray Current and Rail Potential Simulation System for Urban Rail Transit
2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018A system designed to simulate the dynamic distribution of stray current and rail potential for urban rail transit is proposed. In the system, a new bidirectional variable resistance module (BVRM) is used to simulate the train movement under different operation conditions.
Xiaofeng Yang +3 more
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IET International Conference on Railway Engineering 2008 (ICRE 2008), 2008
Electrified railway systems are widely used for urban transportation around the world. In most DC electrified transit systems the running rails are used as the return conductor for traction current. Due to the resistances of running rails and rail-to-ground in totally floating earth systems, there will be a potential rise between the running rails and ...
M. Niasati, A. Gholami
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Electrified railway systems are widely used for urban transportation around the world. In most DC electrified transit systems the running rails are used as the return conductor for traction current. Due to the resistances of running rails and rail-to-ground in totally floating earth systems, there will be a potential rise between the running rails and ...
M. Niasati, A. Gholami
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Maximum Permissible Rail Potential
IEEE Vehicular Technology Magazine, 2011This article reviews the current American and European standards and codes for maximum permissible rail voltage on DC traction power systems. The principles of negative grounding device (NGD) operation and its corresponding voltage settings are also briefly discussed.
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Analysis of Rail Potential and Stray Current for Taipei Metro
IEEE Transactions on Vehicular Technology, 2006Taipei Metro adopted the diode-grounded scheme for stray current collection in construction of its cross rail network. During operation of the network, a high rail-to-earth potential (V/sub rail/) has been observed at the east end of the Blue Line (i.e., stations BL13-BL16).
Shi-Lin Chen +5 more
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Potential Effects of Mercury on Threatened California Black Rails
Archives of Environmental Contamination and Toxicology, 2008San Francisco Bay (SFB) estuary sediments contain high levels of mercury (Hg), and tidal marsh resident species may be vulnerable to Hg contamination. We examined Hg concentrations in California black rails, a threatened waterbird species that inhabits SFB tidal salt marshes.
Danika C, Tsao +3 more
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Guided wave inspection potential of defects in rail
NDT & E International, 2004Abstract The authors provide the results of experiments they have conducted on rail at test tracks and on an operating railroad. Results are presented that suggest that the frequency range [40,80] kHz readily supports guided waves. Theoretical results including roots of the dispersion relations for rail and a sample of wave displacement ...
Joseph L. Rose +3 more
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