THE COLLECTION OF TRACTION CURRENT AT HIGH SPEEDS
LE CAPTAGE DU COURANT DE TRACTION AUX GRANDES VITESSES
A study of the problems posed by the catenary-pantograph combination, which has been carried out by the SNCF during the last fifteen years, has enabled the characteristics of the equipment to be defined. The vertical accelerations of the pantograph, which cause break of contact, have been reduced by improving the flexibility of the catenary at right angles to the supports, as well as by increasing the mechanical tension of the contact wire, with the catenary assembled with an allowance for sag in the contact plane, and the damping of the movements of the pantograph, with the reduction in its mobile mass. In the above article, details are shown of the research carried out concerning the physical analysis of the phenomena, and a brief description is given of the tests undertaken, at very high speeds, between December, 1969, and March, 1970, under a single-phase catenary. The observations made, during these tests, showed that the speed could have attained, or even exceeded, 300 km/h., without any particular risk.
- Appeared as #471 in International Railway Documentation, No. 4, 1973. The title of this section of Informations Techniques SNCF is "Direction de l'Equipment".
Societe Nationale des Chemins de Fer Francais92 rue Bonaparte
75 Paris 6e, France
- Jaume, H
- Publication Date: 1972-11
- Features: Figures; References;
- Pagination: 12 p.
- Informations Techniques SNCF
- Publisher: Societe Nationale des Chemins de Fer Francais
- TRT Terms: Electrical conductivity; High speed rail; Pantographs; Railroad electrification
- Old TRIS Terms: Conductor collector dynamics
- Subject Areas: Railroads; Vehicles and Equipment;
- Accession Number: 00046978
- Record Type: Publication
- Source Agency: International Railway Congress Association
- Report/Paper Numbers: 10
- Files: TRIS
- Created Date: Nov 14 2003 12:00AM