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Förstudie till järnvägslinje in under en av Europas storstäder: Hjälpkraft, Traktionsspänning och Vagabonderande strömmar i returledning för likströmsbanor
Mälardalen University, School of Business, Society and Engineering.
2018 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The purpose with this pre-study of an underground railway track with d.c. traction was to examine alternatives to the auxiliary power, traction power and tracks/ return circuits. This with the problem of stray currents in mind as well with technical, safety and economy. The method used was primarily a literature study of theoretical, standards, other scientific studies, and calculations. The results and conclusions suggested to use a 1kV system for the auxiliary power system, a contact rail for the traction voltage and a slab track for rail and return circuit. This to keep drop voltage within limits, to keep system height down and limit the risk for stray currents. Furthermore, contact rail and slab track raise the comfort and safety, as well as lower the maintenance. The thesis stresses the importance of prevention of stray currents in initial stages of the planning and the fact that there are many ways to do this.

Place, publisher, year, edition, pages
2018. , p. 42
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-40090OAI: oai:DiVA.org:mdh-40090DiVA, id: diva2:1228338
External cooperation
Prose AB
Subject / course
Electrical Engineering
Supervisors
Available from: 2018-06-29 Created: 2018-06-28 Last updated: 2018-06-29Bibliographically approved

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fulltext(2587 kB)4 downloads
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Type fulltextMimetype application/pdf

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf