VR series Hr12
| Hr 12 (from January 1, 1976: Dr12) | |
|---|---|
 Dr12 2216 in Rajamäki
|
|
| Numbering: | 2200-2241 |
| Number: | 42 |
| Manufacturer: | Valmet , Lokomo , MAN , TPT, SGB, BBC, SBG |
| Year of construction (s): | 1959-1963 |
| Retirement: | -1990 |
| Axis formula : | Co'Co ' |
| Gauge : | 1524 mm |
| Length over buffers: | 18,560 mm |
| Trunnion Distance: | 9,720 mm |
| Bogie axle base: | 4,000 mm (2000 + 2000 mm) |
| Total wheelbase: | 13,720 mm |
| Service mass: | 121.8 t |
| Friction mass: | 121.8 t |
| Wheel set mass : | 20.3 t |
| Top speed: | 120 km / h |
| Installed capacity: | 1400 kW |
| Starting tractive effort: | 275 kN |
| Driving wheel diameter: | 1180 mm (worn 1106 mm) |
| Motor type: | V8V 22/30 mAuL |
| Rated speed: | 900 min -1 |
| Power transmission: | electric |
| Number of traction motors: | 6th |
| Drive: | diesel-electric |
The Hr 12 series is a heavy six-axle diesel-electric locomotive series that was procured by the Finnish State Railways ( VR ) between 1959 and 1963 . 42 of these locomotives were built with the Co'Co 'wheel arrangement.
Technical specifications
The mechanical part comes from Lokomo and Valmet in Finland. The electrical part was manufactured by Brown, Boveri & Cie under license from Oy Stromberg AB in Pitäjänmäki . The engine was developed by MAN , which was manufactured under license from Tampella Oy in Tampere . The diesel engine has an output of 1900 hp at the nominal speed of 900 min −1 . It has 16 cylinders with a bore of 220 mm and a stroke of 300 mm.
The delivery years were:
- 1959: 2200-2205
- 1960: 2206-2219
- 1961: 2220-2227
- 1962: 2228-2231
- 1963: 2232-2241
VR series Dr12
On January 1, 1976, there was a change in the Finnish series system. In the course of this change, the series was now referred to as the VR series Dr12 .
VR series Dr15
In January 1980 a Dr12 was converted on a trial basis and classified as the Dr15 series with the number 2439. This conversion was unsatisfactory, so the 2439 remained a unique piece that was taken out of service in 1984. Instead of converting the Dr12, VR decided to purchase the Dr16 series from 1985.
Preserved locomotives
Two machines have been preserved in a museum. These are 2241 in Toijalan Veturimuseo (Toijala Lokomotivmuseum) and 2216 in Haapamäki.
literature
- W. Hefti: Diesel-electric locomotives of the Finnish State Railways. (PDF; 3.0 MB) In: Schweizerische Bauzeitung, Volume 77 (1959), Issue 35.1959 , accessed on April 4, 2013 .
Individual evidence
- ^ Oy Stromberg AB. European Route of Industrial Heritage, accessed July 5, 2013 .
- ^ Rautatie-UKK. 2.1.23. Miten veturit on nimetty? Mitä tarkoittaa esim. Sr1? In: www.resiinalehti.fi/. Retrieved October 23, 2014 (Finnish).
