Results 11 to 20 of about 28,033 (310)
Infinitesimal Method Based Calculation of Metro Stray Current in Multiple Power Supply Sections
IEEE Access, 2020 The calculation of rail potential and stray current in the DC traction power system can guide the protection against the rail overvoltage problem and mitigate the electrolytic corrosion due to stray current.
Sheng Lin +4 more
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Influence of Urban Rail Transit on Corrosion of Buried Steel Gas Pipeline
International Journal of Electrochemical Science, 2021 It has been established that the operation of direct current (D.C.) rail traction systems can cause severe corrosion to neighbouring steel pipelines buried near rail buttresses.
Jianguo Feng +4 more
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An investigation into the potential for multiple rail railguns [PDF]
IEEE Transactions on Magnetics, 1989 A simple numerical technique for determining current distribution and inductance in parallel conductor geometries is outlined. Interim results of an ongoing study which applies this technique to analyze and compare two- and multirail railgun geometries are presented. Multirail candidates were compared to comparably sized two-rail counterparts.
Beno, J. H., Weldon, W. F.
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Possibilities to Use Rail Transport Potential for the Needs of the Army
EUROPEAN RESEARCH STUDIES JOURNAL, 2021 Purpose: The aim of the study adopted by the authors is an attempt to estimate the national railway potential from the point of view of military needs. Design/Methodology/Approach: The conducted research was focused on seeking for the solutions which could improve organisation of rail transport for the army. Findings: The article presents the condition
Stanczyk, Konrad +1 more
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Modelling rail thermal differentials due to bending and defects
Transport, 2021 Rail foot flaws have the potential to cause broken rails that can lead to derailment. This is not only an extremely costly issue for a rail operator in terms of damage to rolling stock, but has significant flow-on effects for network downtime and a safe ...
Chris Bosomworth +3 more
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Study on the Influence of OVPD on Pipeline Interference [PDF]
Cailiao Baohu, 2021 A buried steel pipeline paralleled with the subway line has been seriously interfered by the metro stray current.The rail ground potential protection device inside the subway station was frequently switched on.Through synchronous monitoring of the rail ...
WANG Lei-lei, GE Cai-gang, MOU Xiao-liang, JIANG Ka-ke, LIU Guo, DU Yan-xia
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Evaluation of Rail Potential Based on Power Distribution in DC Traction Power Systems
Energies, 2016 Running rails used as a return conductor and ungrounded scheme have been widely adopted in DC traction power systems. Due to the longitudinal resistance of running rails and insulation resistance of rail-to-ground, there will be a potential rise between ...
Guifu Du +4 more
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Corrosion and stray currents at urban track infrastructure
Građevinar, 2020 Rails are a part of track structure where corrosion process inevitably occurs, except if they are fully insulated and devoid of contact with any other part of the structure (sleepers, fastening accessories) or electrolyte like moist soil or water in ...
Katarina Vranešić +2 more
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Detection of Rail Defects Using NDT Methods
Sensors, 2023 The rapid development of high-speed and heavy-haul railways caused rapid rail defects and sudden failure. This requires more advanced rail inspection, i.e., real-time accurate identification and evaluation for rail defects. However, existing applications
Longhui Xiong +4 more
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Multi‐state unified calculation model of rail potential and stray current in DC railway systems
IET Electrical Systems in Transportation, 2023 In order to calculate the dynamic distribution of rail potential and stray current accurately, a multi‐state unified calculation model of rail potential and stray current is proposed, and the characteristics of different protection devices and reflux ...
Guifu Du +7 more
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