SNCF BB 20011 and 20012

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SNCF BB 20011
SNCF BB 20012
Type and origin
Power type Electric
Model SNCF BB 22200
Rebuild date 1985 : 20011 rebuilt from 22379[1]
1986 : 20012 rebuilt from 22380[1]
1994 : both rebuilt for TTU[2][note 1]
1995 : both rebuilt to standard BB 22200[2]
Specifications
Gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge

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

SNCF BB 26000 test locomotives

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

In 1994 the units were used in the channel tunnel as motor engines for TTU trains.[2][note 1] (Channel tunnel freight engines)

Conversion to standard locomotives

In 1995 the locomotives were converted back to standard SNCF Class BB 22200 type.[2]

Miniature models

The locomotive 20011 has been produced by Marklin[5] and Roco[6][7] in HO scale.

Notes

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References

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External links

Images
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