| Re: Maximum train current - Proposal for extension of infrastructure scheme in railML 2.4 [message #1694 is a reply to message #1693] |
Mon, 29 January 2018 10:34   |
christian.rahmig
Messages: 436
Registered: January 2016
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Senior Member |
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Dear Mr. Frenzke,
thank you for bringing up the topic of maximum train currents that I
would like to comment on from railML.org side:
Am 28.01.2018 um 23:13 schrieb Dr. Thorsten Frenzke:
> Dear all,
>
> on some line sections with electric traction system the maximum
> allowable current and power of a train is limited by the electrification
> (see also EN 50388).
> This may have influence on acceleration, running times and energy
> consumption, especially of high speed trains and multiple unit formations.
>
> Up to now there is no railML-element or attribute for considering such
> limitations.
That is correct for railML 2.x. In railML 3.1 beta that had been
released on October 31, 2018, a first version of the maximum train
current topic has already been implemented.
An example based on this implementation in the infrastructure scheme
looks like this:
<electrification>
<energyCatenary maxPantoCurrentStandstill="800"
maxTrainCurrentDriving="3000"/>
</electrification>
The values are given in Amperes [A].
> Sometimes, e.g. in Germany, there are different maximum allowable
> currents for passenger and freight trains.
In order to allow for train category specific maximum train currents, a
modification of the schema has been discussed. The adapted example would
look like this:
<electrification>
<energyCatenary maxPantoCurrentStandstill="800">
<maxTrainCurrentDriving maxCurrent="3000" trainType="passenger"/>
<maxTrainCurrentDriving maxCurrent="1200" trainType="freight"/>
</energyCatenary>
</electrification>
> Maybe it makes sense to add other optional attributes for this.
I would like to direct this question to the infrastructure managers and
electrification experts:
Are there any further parameters that are relevant for the maximum train
current? Any feedback is appreciated...
Best regards
Christian
--
Christian Rahmig - Infrastructure scheme coordinator
railML.org (Registry of Associations: VR 5750)
Phone Coordinator: +49 173 2714509; railML.org: +49 351 47582911
Altplauen 19h; 01187 Dresden; Germany www.railml.org
Christian Rahmig – Infrastructure scheme coordinator
railML.org (Registry of Associations: VR 5750)
Altplauen 19h; 01187 Dresden; Germany www.railML.org
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