CALCULATION OF THE INDUCTIVE COUPLING BETWEEN TRANSMISSION LINES

A current flowing in a power line and returning in the earth induces an unwanted e.m.f. in the neighbouring telecommunication line. Such inducing current occurs at the threephase power transmission in abnormal faulted conditions, but are flowing at normal operation in railway traction lines. A summary is given for the calculation methods of the mutual impedance between the lines with common earth return. However, the mutual impedance between an overhead power lineground loop and a narrow loop of open-wire telecom lines is discussed in detail. Error estimations and numerical results are shown in figures.

• Corporate Authors:

  International Railway Congress Association

  17-21 rue de Louvrain
  1000 Brussels,   Belgium 
• Authors:
  • Deri, A
  • Tevan, G
  • Varju, G
• Publication Date: 1985-11

Media Info

• Features: Photos; References;
• Pagination: p. 21-30
• Serial:
  • RAIL INTERNATIONAL
  • Volume: 16
  • Issue Number: 11

Subject/Index Terms

• TRT Terms: Analysis; Electric current; Electric power transmission; Electrical impedance; Electromagnetic interference; Mechanical impedance; Railroad electrification; Telecommunications
• Uncontrolled Terms: Inductive coupling
• Old TRIS Terms: Analytical method; Three phase current
• Subject Areas: Energy; Operations and Traffic Management; Public Transportation; Railroads;

Filing Info

• Accession Number: 00455039
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Jul 31 1986 12:00AM