Results 1 to 10 of about 28,033 (310)
Chengshi guidao jiaotong yanjiuObjective The data of various monitoring points regarding rail potential as monitoring object is correlated in time and space, and the direct manifestation of changes in rail-to-rebar structural resistance is reflected in rail potential variation.
Weiguo PAN +4 more
doaj +3 more sources
Rail machining – current practices and potential for optimisation [PDF]
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2023 Current practices on rail machining show large variations in strategies and amount of grinding and milling. To identify reasons for this and suggest strategies to further optimise rail machining, objectives of machining are scrutinised and consequences of not fulfilling objectives are investigated.
Erika Steyn +3 more
openaire +3 more sources
Chengshi guidao jiaotong yanjiuObjective In the DC (direct current) traction power supply system of urban rail transit, excessive rail potential and stray current issues are persistent problems and common ailments for operational routes.
TANG Zhaojun +5 more
doaj +2 more sources
Technology Research on Rail Potential Limit of Urban Rail Transit
机车电传动, 2018 The OVPD device is an important component of the protective equipment in the power supply system of urban rail transit. Basic principle of rail potential limiting protection for urban rail transit was analyzed, and a new type of rail potential limiter ...
CHEN Chaolu +4 more
doaj +1 more source
Access to railway stations and its potential in increasing rail use
Transportation Research, Part A: Policy and Practice, 2009 The propensity to travel by rail, and not, for example by car, can be considered to be a factor of the rail service offered, the access to it and the characteristics of the population served. Efforts to increase rail use usually focus on the rail service itself while the accessibility of the rail network receives less attention.
Moshe Givoni, Piet Rietveld
exaly +6 more sources
Analysis on Rail Potential Distribution Characteristics Considering OVPD in Metro System
IEEE Access, 2021 By the field investigation of the metro system, it is found that there is relatively serious corrosion in the terminal of the metro line, and overvoltage protection device (OVPD) often operates when the metro system is in the valley level.
Ning Xiao +12 more
doaj +1 more source
Dynamic Stray Current Measuring Methods in Urban Areas
The Baltic Journal of Road and Bridge Engineering, 2022 In areas where urban tracks are used as public transportation, dynamic stray currents cause high maintenance costs for the tracks and metal structures near the tracks.
Katarina Vranešić +4 more
doaj +1 more source
Decreasing the Rail Potential of High-Speed Railways Using Ground Wires
Applied Sciences, 2023 For high-speed railways, the rail potential, i.e., the electrical potential difference between the rail and the ground, can be considerably higher than that of conventional speed electric railways and become a safety risk to the signaling devices along ...
Guanting Wu, Kejian Song
doaj +1 more source
Gathering Energy of the Stray Currents in Electrified Railways Environment for Power Supply
Energies, 2021 The paper presents a new, unconventional energy harvesting (EH) method for supplying low-power devices on electrified railway lines that utilises stray currents and the non-zero potential of the rails to the ground.
Grzegorz Wieczorek +3 more
doaj +1 more source
Algorithm for calculating the rail-ground potential in heavy load conditions [PDF]
E3S Web of Conferences, 2021 Increased freight turnover on railway transport inevitably leads to increased traction current in DC and AC traction power supply systems. The increase in traction current is already causing problems related to the normal operation of the 25 kV AC ...
Ignatenko Ivan +3 more
doaj +1 more source