SNCF Class BB 20005
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| Power type | Electric |
|---|---|
| Builder | Alsthom & MTE |
| Build date | 1961 (rebuilt from BB16028) |
| UIC classification | Bo-Bo |
| Length | 16.68 m |
| Width | 2.98 m |
| Height | 4.29 m |
| Locomotive weight | 84 tons |
| Electric system(s) | 1.5 kV DC 25 kV AC |
| Traction motors | two TO-136B 1.5kV DC traction motors |
| Top speed | 160 km/h |
| Power output | 3,890 kW under 25kV 3,290 kW under 1.5kV |
| Safety systems | Crocodile |
| Career | SNCF |
| Number in class | 1 |
| First run | 1961 |
| Disposition | reinstated to BB16028 |
The SNCF class BB 20005 locomotive was a prototype locomotive of the BB25150/BB25200 series, transformed from the damaged BB16028 in 1961.After the end of its test period in 1975 it was reinstated with its original equipments under its original number BB16028.
[edit] History
After successful tests with BB20004, prototype of BB25500 locomotives, another new series of dual-voltage locomotives was ordered by SNCF: the BB25150 and BB25200 series.These had a higher power than their predecessors, and in order to test the new parts and technology it was decided to rebuild a BB16000 locomotive into dual-voltage.
BB20005 differed from previous prototypes in the way that it had a both complete AC and DC equipment, previous locomotives only having a complete AC equipment and a small DC equipment, limiting their power under 1.5kV.With a full AC and DC equipment, BB20005 developed nearly 85% of its power under 1.5kV, which was a great achievement at that time, knowing that only 2 years before BB20004 developed only 45% of its power under 1.5kV.
The prototype helped to develop the bogies of the 2 "BB Jacquemin" series: the BB25150 series which had bogies for 130 km/h and were lower geared (to pull heavier freight trains) and the BB25200 series which had bogies for 160 km/h and were higher geared (for lighter passenger trains and to operate in push-pull mode).
[edit] References
- LES PROTOTYPES MONOPHASÉS DE L'ÉTOILE DE SAVOIE.APMFS-TRACTION (French)
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| Electric locomotives | |
| DC: | 300 - 1100 - 3200 - 3300 - 3400 - 3500 - 3600 - 3700 - 3700 - 4100 - 4600 - 4700 - 4730 - 5400 - 5500 - 6001 - 6002 - 6003 - 6500 - 7000 - 7003 - 7100 - 7200 - 8100 - 8500 - 8700 - 9001 - 9003 - 9100 - 9200 - 9300 - 9400 - 9600 - 9700 - 80000 - 88500 |
| AC: | 10001 - 10002 - 10003 - 10004 - 12000 - 13000 - 14000 - 14100 - 15000 - 16000 - 16100 - 16500 - 17000 |
| Dual-voltage: | 20001 - 20002 - 20003 - 20004 - 20005 - 20006 - 20011 - 20100 - 20150 - 20200 - 21000 - 22200 - 25000 - 25100 - 25150 - 25200 - 25500 - 26000 - 27000 - 27300 |
| Triple-voltage: | 30000 - 36000 - 36300 - 37000 |
| Quadruple-voltage: | 40100 - 47000 |
| Diesel locomotives | |
| Main-line locos: | 60000 - 60001 - 60002 - 60021 - 60031 - 60051 - 61000+61100 - 61000 - 62000 - 62400 - 63000 - 63400 - 63500 - 64700+64800 - 65000 - 65500 - 66000 - 66400 - 66600 - 66700 - 67000 - 67200 - 67300 - 67400 - 68000 - 68500 - 69000 - 69400 - 70000 - 71000 - 72000 - 72100 - 75000 - 80000 |
| Shunters: | Y 2100 - Y 2200 - Y 2400 - Y 5100 - Y 6000 - Y 6200 - Y 6300 - Y 6400 - Y 7100 - Y 7400 - Y 8000 - Y 8400 - Y 9100 - Y 11000 - YBD 12000 - YBE 14000 - YBE 15000 - Y 50100 - Y 51100 - Y 51200 - Y BL |
