Inductive influence of 25 kV, 50 Hz electrified single rail traction system
نویسندگان
چکیده
منابع مشابه
An integrated methodology for 2 x 25 kV , 50 Hz traction system calculation
The paper describes an integrated calculation methodology which, by simulating railway traffic, allows analysis of the performance of 2x25 kV 50 Hz electric traction systems. This methodology performs a multiconductor electrical analysis of the traction circuit utilising ATP-EMTP software (Alternative Transient Program-Electromagnetic Transient Program) and therefore additionally allows calcula...
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In this paper, after a short description of the problems related to the detection of short circuits in 2x25 kV 50 Hz traction systems, a methodology for the choice of the operating area of the relay for protections based on the comparison between a measured line impedance and a fixed minimum impedance is presented. The proposed methodology has been realized through the development of a procedur...
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At the moment 25 kV traction power supply systems are being introduced in the Netherlands. Currently in the Netherlands a 1500 V DC system is used, however due to increasing energy demands this system is no longer sufficient. For the high-speed lines and heavy freight lines, which are under construction, the 2x25 kV AC system has been chosen. Introduction of this new technology leads to differe...
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The recordings of the pantograph voltage and current waveforms across Italian and French high speed railway lines (both Autotransformer 2x25 kV 50 Hz systems) are analyzed to estimate some Power Quality indexes: harmonic spectra, harmonic distortion, displacement factor and fundamental component, in various rolling stock operating conditions. These indexes, that define the electrical interface ...
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Most modern DC electrified mass transit systems use a totally floating earth as their grounding strategy. A well-known problem related with totally floating systems is that the touch potentials can be dangerously high. In order to reduce the voltages on rails, several devices exist. Most of these devices allow a direct connection to earth when a certain voltage threshold is exceeded. In this pa...
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ژورنال
عنوان ژورنال: MATEC Web of Conferences
سال: 2018
ISSN: 2261-236X
DOI: 10.1051/matecconf/201818006004