AC PROPULSION--GOOD MEDICINE, BUT WHAT ARE THE SIDE EFFECTS?

The introduction of alternating current (ac) propulsion systems, although providing many benefits, may carry with it some unexpected negative side effects caused by the introduction of a new emitter of electromagnetic interference to the current transit environment. Methods for measuring the susceptibility envelopes of the many signaling subsystem receptors present in the transit system are examined. Techniques for measuring susceptibility in the field and in the laboratory are discussed; these include noise burst tests, interruption of track signal tests, and phase relationship tests. Failure modes presented include both operational reliability and safety failures. The measurement of conductive and inductive emissions from a new European transit system that uses ac propulsion has been accomplished. The preliminary results of this testing are presented.

Media Info

  • Media Type: Print
  • Pagination: pp 39-41
  • Monograph Title: Rail papers - 1984
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00391336
  • Record Type: Publication
  • ISBN: 0309036739
  • Files: TRIS, TRB
  • Created Date: Mar 29 1985 12:00AM