SNCF Class BB 10003

The locomotive SNCF BB 10003 was an experimental prototype locomotive converted from a SNCF BB 15000 electric locomotive and used to develop the use of asynchronous induction traction motors.

SNCF BB 10003
Type and origin
Power typeElectric
BuilderAlstom / MTE
Build date1982 (converted from BB 7003)
Total produced1
Specifications
Configuration:
​
 • UICBo'Bo'
Gauge1,435 mm (4 ft 8 1⁄2 in)
Wheel diameter1,250 mm (49.21 in)
Loco weight92 t (91 long tons; 101 short tons)
Electric system/s25 kV AC Catenary
For TMST tests (1991-2) : 3 kV DC Catenary,
750 V DC Third rail †
Current pickup(s)For 25 kV and 3 kV DC, Pantograph
For 750 V DC, Contact shoe[note 1]
Traction motors4 asynchronous motors type ASB5B1
Performance figures
Maximum speed160 km/h (99 mph)
Power output5 MW (6,700 hp)
Career
Withdrawn1998
Dispositionreinstated as BB 15007 in 1998
Sources :[2] except †[1]

History

The locomotive BB 10003 was created from an earlier experimental machine BB 7003 in 1982. It was used to test the use of asynchronous induction motors in locomotives.[note 2][2][3]

From 1986-7 the locomotive was used in experiments testing the viability of a diesel electric locomotive with asynchronous traction motors; the locomotive was coupled to a remotorised SNCF CC 72000 locomotive which acted as an electrical generator.[1]

In 1990/1 the locomotive was used as a test machine for operations of the TGV-TMST on 750 V and 3000 V.[4] In 1998 the locomotive was converted back to a non-experimental class - as SNCF BB 15007. (SNCF Class BB 15000)[2][4]

Legacy

The results were not as good as synchronous motor technology; it was not until the introduction of GTO transistor technology that series production of an asynchronous induction motored locomotive began in France, as the Eurostar TGV (1992),[3] and later the BB 36000 Astride (1996).

Notes
  1. For UK system, on Trans-Manche link.[1]
  2. A contemporary prototype, the BB 10004 which was used to test synchronous motors gave better results with the available technology (lower mass, and an easier implementation of regenerative braking) was preferred, and led to the SNCF BB 26000 class.[3]

References
  1. "BB 10003". fc30.pagesperso-orange.fr (in French). Trains d'Europe.
  2. Thierry Martel. "BB 10003 (prototype)". Le dépôt de Longueau (www.passiondutrain.fr) (in French). Retrieved 9 July 2011.
  3. "BB 15000". ferrovia.free.fr (in French). Machines remarquables de la série. Retrieved 9 July 2011.
  4. "SNCF withdrawn locomotives". www.railfaneurope.net.
  • N.C. Jones; J.J. Greening; A.A. Thevenon (21–23 May 1991). "BB 10003-prototype electric locomotive for the TMST". Proceedings of the 1991 IEEE/ASME Joint Railroad Conference: 125–132. doi:10.1109/RRCON.1991.160936. ISBN 978-0-7803-0072-9.
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