THREE-PHASE OPERATION OF RAIL VEHICLES RUNNING ON D.C. AND A.C. CONTACT WIRES

For the operation of rail vehicles with asynchronous motors a current converter system is available which is suitable for both d.c. and a.c. contact wires. The components d.c. controller and inverter with machine are equipped with input smoothing for d.c. vehicles, while for a.c. vehicles there is a rectifier which operates with a power factor of almost 1. Inverter and machine operate with impressed current in an uncomplicated circuit. WIth the asynchronous machine there is none of the limitations which restrict the Zv diagram with the 16 2/3 Hz motor and the mixed-current series motor. Electric braking down to standstill is possible, even if the mains fail. The controllability of the asynchronous machine also complies with the dynamic requirements of slip and skid prevention. A tramcar is already in operation with this system and an underground railway car is being equipped with it.

• Corporate Authors:

  Hestra Verlag

  Holzhofallee 33, Postfach 4244
  6100 Darmstadt 1,   Germany 
• Authors:
  • Meissen, W
  • Sauer, H
• Publication Date: 1977-7

Language

• German

Media Info

• Pagination: 3 p.
• Serial:
  • Eisenbahntechnische Rundschau
  • Volume: 26
  • Issue Number: 7-8
  • Publisher: Hestra Verlag

Subject/Index Terms

• TRT Terms: Alternating current motors; Asynchronous motors; Electric power conditioning; Inverters; Motors; Railroad electrification; Rectifiers; Traction; Traction drives
• Subject Areas: Energy; Railroads;

Filing Info

• Accession Number: 00170097
• Record Type: Publication
• Source Agency: British Railways
• Files: TRIS
• Created Date: Feb 16 1978 12:00AM