BTB1_MFL1.jpg (162355 bytes)|
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Directory: /pix/ch/private/BLS/electric/historic/De2_2
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| In 1899 the Swiss Burgdorf-Thun-Bahn was the first electric standard gauge railway (tram systems went electric earlier). The chosen system was 3-phase AC 40 Hz, 750 V. Two freight locomotives De 2/2 1 and 2 were built by SLM/BBC, with a mechanic transmission allowing constant speeds of 18 and 36 km/h. The power of the single motor was 220 kW, at a mass of 29600 kg and a length of 7.8 meters. In 1933 the line was converted to 15 kV 16 2/3 Hz and the old locomotives retired. In 1942 the BTB became part of the EBT, today it belongs to the BLS. De 2/2 1, Lokwelt Freilassing, 2013-08-10. |
| In 1899 the Swiss Burgdorf-Thun-Bahn was the first electric standard gauge railway (tram systems went electric earlier). The chosen system was 3-phase AC 40 Hz, 750 V. Two freight locomotives De 2/2 1 and 2 were built by SLM/BBC, with a mechanic transmission allowing constant speeds of 18 and 36 km/h. The power of the single motor was 220 kW, at a mass of 29600 kg and a length of 7.8 meters. In 1933 the line was converted to 15 kV 16 2/3 Hz and the old locomotives retired. In 1942 the BTB became part of the EBT, today it belongs to the BLS. De 2/2 1, Lokwelt Freilassing, 2013-08-10. |
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Electric locomotive De 2/2 1 of the Burgdorf-Thun-Bahn (today:
Regionalverkehr Mittelland), built 1899 as one of the first
big 3-phase locomotive, in service until 1932 when the system
was changed to standard 1-phase AC. This is the sister
locomotive of the De 2/2 2 in the Verkehrshaus Luzern.
Deutsches Museum München, 2003-11-25. |
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Burgdorf-Thun-Bahn (BTB) 3-phase locomotive De 2/2 2 of 1899.
Burgdorf - Thun was electrified in 1899 with 3-phase dual overhead
wires (as the first mainline worldwide), in 1932 the railway was
converted to the usual 1-phase AC system and the 3-phase locomotives
retired.
Verkehrshaus der Schweiz, Luzern, 2003-02-11.
Photo: tobias b köhler |
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Burgdorf-Thun-Bahn De 2/2 2
Luzern (Verkehrshaus), 2003-02-11
Photo: Hans-Jürgen Ramoschat |
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Luzern. Swiss Museum of Transport, rail section.
Photo by Emanuele Rava, 01-04-2010 e-mail emanrava@yahoo.it |
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Luzern. Swiss Museum of Transport, rail section.
Photo by Emanuele Rava, 01-04-2010 e-mail emanrava@yahoo.it |
BTB1_MFL2.jpg (144714 bytes)
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