SNCF BB 20011 and 20012
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The SNCF BB 20011 and SNCF BB 20012 were electric locomotives used for testing, built by Alsthom between 1985 and 1986. The two locomotives were the synchronous dual-voltage prototypes for Class BB 26000.
In 1994 the locomotives were re-used for work on the Channel Tunnel, then converted to standard class BB 22200s in 1995.
History
[edit]SNCF BB 26000 test locomotives
[edit]In 1985 and 1986 the SNCF BB 22200 locomotives numbers 22379 and 22380 were modified[1] to test dual voltage electric traction equipment, the microprocessor control, and auxiliary variable speed induction motors. 20012 was used to test the combination of pneumatic brake system and electric brake system.[3]
Channel tunnel machines
[edit]In 1994 the units were used in the Channel Tunnel as motor engines for TTU trains.[2][note 1] (Channel tunnel freight engines)[5]
Conversion to standard locomotives
[edit]In 1995 the locomotives were converted back to standard SNCF Class BB 22200 type.[2]
Miniature models
[edit]The locomotive 20011 has been produced by Märklin[6] and Roco[7][8] in HO scale.
Notes
[edit]- ^ a b TTU from Transmanche (cross channel) + TVM (Transmission Voie-Machine) + UM (Unité Multiple / Multiple units)[4]
References
[edit]- ^ a b c Isabelle Saillot. "Une histoire technologique du THALYS". isabelle-saillot.com (in French). Archived from the original on 2011-07-13.
... la SNCF avait fait modifier la BB 15055 en BB 10004 puis les BB 22379 et 22380 alors en construction, en BB 20011 (1985) et 20012 (1986)
- ^ a b c d "SNCF withdrawn dc electric locomotives". www.railfanurope.net. Archived from the original on 2013-01-25. Retrieved 2011-01-06.
Class 22200 (nrs. 379-80), delivered as prototypes BB 20011-12 with synchronous motors (for Class 26000). Rebuilt as TTU (1994), then as original 22200s (1995)
- ^ "Traction ferroviaire 1ére partie : Evolution des choix technologiques de ces 30 dernières années Influence des composants de l'électronique de puissance sur les choix technologiques" [Railway Traction (1st part) : Evolution of technological choices over 30 years, influence of components on power electronics technology decisions] (PDF). science-physiques.ac.dijon.fr (in French).
- ^ Olivier Serre. "Abréviations". lwdr.free.fr (in French). Archived from the original on 2011-07-20.
- ^ BB 22000 testing begins Rail issue 204 7 July 1993 page 45
- ^ "B.Z.T - Galerie de photos - MÄRKLIN". www.bxt87.com (in French). MACHINES ÉLECTRIQUES SNCF. Archived from the original on 2011-07-07.
- ^ "Locomotives pour trains d'essais". www.trains-speciaux.fr (in French). Archived from the original on 2011-07-21.
- ^ Helmut Kern. "Roco Frankreich ELok BB 7200,15000,20000,22000". www.bahn.hfkern.de (in German).
External links
[edit]- Images
- "BB 20011 -14.04.1989 - Brérigny - Bernard VIEU". www.railfaneurope.net.
