DISTURBANCES CAUSED IN THE SUPPLY AND DISTRIBUTION NETWORK BY ELECTRIC TRACTION SYSTEMS

This report sums up the results of research work, the aim of which was to investigate the influence exerted on the power supply network and its other customers by single phase loads arising from the feeding of railways electrified on the 25 kV system. Feeding of electric railways in such a manner affects the three phase supplying systems in two ways: first through the unbalanced load due to the connection to only two phases, leading to voltage distortions and parasite currents, and secondly by harmonics due to the wide-spread use of rectifiers in the traction current circuits of motive power units. It has been found that the disturbances do not exceed limits which can be considered to be acceptable.

• Supplemental Notes:
  • Restrictions on the use of this document are contained in the explanatory material.
• Corporate Authors:

  International Union of Railways

  Office of Research and Experiments
  Utrecht,   Netherlands 
• Publication Date: 1964-10

Media Info

• Features: Figures; Tables;
• Pagination: 19 p.

Subject/Index Terms

• TRT Terms: Electric power supply; Electromagnetic interference; Harmonics; Interference; Railroad electrification; Rectifiers; Solid state devices; Tests; Traffic signal phases
• Uncontrolled Terms: Phase angles; Propulsion systems
• Old TRIS Terms: Question a38; Solid state
• Subject Areas: Energy; Railroads;

Filing Info

• Accession Number: 00053080
• Record Type: Publication
• Source Agency: International Union of Railways
• Report/Paper Numbers: A38/RF/E Final Rpt.
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM