PROTOTYPE THYRISTOR-CONTROLLED BR CLASS 87 25 KV INTRODUCED AND TRIALS START TO EVALUATE INFLUENCE ON SIGNALLING AND COMMUNICATIONS

Stepless power control produced by solid-state propulsion systems has advantages from performance and weight saving aspects but can cause telecommunications problems because of electrical interference. Predecessor locomotives of this same general design have normal tap changer control of acceleration; British Railways elected to build a prototype locomotive with thyristor power conditioning system so that aspects such as power factor and general harmonics might be investigated. Previous BR experience with thyristors had been on multiple-unit trains; this installation represents a significantly higher power level.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/9675046
• Corporate Authors:

  Broadfields (Technical Publishers) Limited

  Little Leighs
  Chelmsford, Essex CMB 1PM,   England 
• Publication Date: 1975-6

Media Info

• Features: Figures; Photos;
• Pagination: p. 151-153
• Serial:
  • Rail Engineering International
  • Volume: 5
  • Issue Number: 4
  • Publisher: De Rooi Publications
  • ISSN: 0141-4615

Subject/Index Terms

• TRT Terms: Electric locomotives; Electric power conditioning; Interference; Power factor; Solid state devices; Telecommunications; Tests; Thyristors
• Identifier Terms: British Rail
• Uncontrolled Terms: Propulsion systems
• Old TRIS Terms: Power factor; Solid state
• Subject Areas: Energy; Railroads;

Filing Info

• Accession Number: 00126453
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 5 1976 12:00AM