Controlling rail potential of DC supplied rail traction systems

Mehmet Turan Söylemez*, Süleyman Açikbaş, Adnan Kaypmaz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

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 paper, the working principles of these devices are given and the effect of certain parameters related with these devices on the minimum achievable touch potentials is investigated.

Original languageEnglish
Pages (from-to)475-484
Number of pages10
JournalTurkish Journal of Electrical Engineering and Computer Sciences
Volume14
Issue number3
Publication statusPublished - 2006

Keywords

  • Earthing
  • Rail potential control
  • Rail transit
  • Stray currents
  • Touch voltage

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