Coaches fitted with air conditioning and other services require an extensive and high-capacity power supply system to feed the lighting and heating, refrigerating plant, fans providing forced ventilation to the passenger compartments, hot water storage tanks and, in coaches with sleeping berths or couchettes, the refrigerators. The three-phase power systems used in passenger rolling stock are at present still equipped with rotary converters. Suitable motor-generator sets have proved to be reliable. The only drawback is the need to check the commutator motor regularly. For traction vehicles, the change from commutator machines to induction motors is well under way. In the future, static frequency changers can be expected to replace the rotary converter for supplying power to multi-system coaches. Existing rolling stock with a three-phase system can then be modernized at reasonable cost by replacing the motor-genrator with a static frequency changer.

  • Corporate Authors:

    Brown Boveri and Company Limited

    Publicity Department
    Baden,   Switzerland 
  • Authors:
    • Strub, P
  • Publication Date: 1974-12

Media Info

  • Pagination: p. 559-563
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00097994
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Aug 13 1975 12:00AM