BEHAVIOUR OF PANTOGRAPHS AND OVERHEAD EQUIPMENT AT SPEEDS HIGHER THAN 160 KM/H. SNCF TESTS AT VERY HIGH SPEED (SINGLE-PHASE TRACTION CURRENT)
Since 1954, the SNCF have carried out tests on 25 kV - 50 Hz electrified lines at speeds varying between 169 and 230 km;h, the purpose of which is 1) to improve rolling stock (locomotives - passenger coaches) and fixed installations (overhead contact system, track and signalling equipment), 2) to determine maintenance and operating methods suitable for high-speed running. The first test-runs showed that the effect of speed on the performance of the rolling stock and overhead contact system raised new and difficult problems regarding satisfactory current collection at all the speeds examined. Moreover, it was feared that, above a certain speed, the uplift and oscillations of the overhead contact system might cause the pantograph to foul the registration equipment at the supports. Consequently, it was essential to carry out tests in order to examine the behaviour of the overhead contact system and the pantograph at high speeds, to define the limits of certain parameters (especially the aerodynamic upward force of the pantograph) and to determine the most suitable characteristics of the overhead contact system for high-speed running. The present report gives the results of tests on the dynamic behaviour of the pantograph and the overhead contact system, carried out on the Colmer-Mulhouse line, in November 1961.
- Restrictions on the use of this document are contained in the explanatory material.
International Union of RailwaysOffice of Research and Experiments
- Publication Date: 1968-10
- Features: Appendices; Figures; Tables;
- Pagination: 22 p.
- TRT Terms: Electrical conductivity; Pantographs; Railroad electrification; Vehicle design
- Identifier Terms: Societe nationale des chemins de fer francais
- Old TRIS Terms: Conductor collector dynamics; High speed tests; Question a84
- Subject Areas: Design; Railroads;
- Accession Number: 00052713
- Record Type: Publication
- Source Agency: International Union of Railways
- Report/Paper Numbers: A84/RP 5/E
- Files: TRIS
- Created Date: May 14 2001 12:00AM