VR series Sr2
| VR series Sr2 | |
|---|---|
 Sr2 3220 in Pasila (June 2013)
|
|
| Numbering: | 3201-3246 |
| Number: | 46 |
| Manufacturer: |
SLM , ABB ( Adtranz ) / today Bombardier Transportation |
| Year of construction (s): | 1996-2003 |
| Axis formula : | Bo'Bo ' |
| Gauge : | 1524 mm |
| Length over buffers: | 18,690 mm |
| Trunnion Distance: | 11,000 mm |
| Total wheelbase: | 13,800 mm |
| Service mass: | 82.0 t |
| Wheel set mass : | 20.5 t |
| Top speed: | 210 km / h |
| Hourly output : | 6100 kW |
| Continuous output : | 5000 kW |
| Starting tractive effort: | 300 kN |
| Impeller diameter: | 1,100 mm |
| Power system : | 25 kV 50 Hz ~ |
| Number of traction motors: | 4th |
| Drive: | Asynchronous motors |
|
UIC no. : 91 10 3002 0XX-Y FIN-VR XX = consecutive number Y = control number |
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The VR series Sr2 is after Sr1 the second electric locomotive - series , by the Finnish State Railways VR was procured mm track gauge 1524th The Sr2 is used in both travel and freight train services and has a maximum speed of 210 km / h.
history
The Sr2 belongs to the Lok 2000 family and its design is based heavily on the SBB Re 460 and BLS Re 465 . The Norges Statsbaner have acquired another variant of this design in the form of the NSB El 18 .
After an international tender by the Finnish State Railways (VR), the Swiss consortium SLM / ABB won against well-known European competitors in May 1992. Thus the Sr2 is above all a further development of the BLS Re 465 .
A climatic chamber ensured that the new locomotives can withstand temperatures down to –50 ° C. The specification stipulates that there may not be more than five failures with a mileage of one million kilometers. The Swiss Lokomotiv- und Maschinenfabrik (SLM) and the Swiss-Swedish group Asea Brown Boveri (ABB; formerly BBC) produced the components. Due to the high unemployment rate and shortage of foreign exchange in Finland, the construction of the locomotive boxes and the final assembly had to take place there. The Swiss producers had to create manuals in Finnish for the locomotive drivers and the workshop staff there.
The main changes to adapt to Finnish conditions relate to the gauge, the high-voltage equipment and the main transformer because of the contact wire voltage of 25 kV and the installation of the SA-3 central buffer coupling . In the second series (from locomotive 3221) the machines received Unilink couplings and SA-3-like coupling heads with integrated screw couplings . In contrast to the Swiss machines, the pantograph installation spaces are not covered. The wider Finnish range protrudes laterally beyond the roof contour. In addition, the side skirts have been omitted. As a result, the locomotives appear a bit longer-legged than the Swiss and Norwegian locomotives, despite their otherwise identical dimensions.
The first 20 locomotives were completed in 1996. Another 20 were ordered in 1999 and another six in 2000.
