Gruhlwerk opencast cog railway
The Gruhlwerk opencast rack railway was a rack railway in Kierberg near Cologne operated with 3,000 volts three-phase current with a frequency of 50 Hertz . She joined the lignite - opencast mines with the briquette of Gruhl work .
The two-lane 900 mm track that went into operation in 1927 was 700 meters long and was one of the few tracks that used a three-pole overhead contact line.
In 1949 the company was closed. There were three locomotives here.
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Existing routes: Jungfrau Railway 1898 | Gornergratbahn 1898 | Chemin de Fer de la Rhune 1914/24 | Corcovado mountain railway 1910
Lines that were later re-electrified: Veltlinbahn | Ferrovia Alta Valtellina | Mont Cenis Railway | Trento burner | Bolzano – Merano | Firenze-Bologna | TEL Tram Lugano 1896–1910 | StEB Stansstad – Engelberg 1898–1964 | BTB Burgdorf – Thun Railway 1899–1933 | SSS / SStB Schwyzer trams 1900–1914 | SBB / BBC three-phase operation Brig – Iselle 1906–1930 | Great Northern Old Cascade Tunnel 1909–1927 | RhW Tram Rheineck 1909–1958 | RENFE Gérgal – Santa Fe-Alhama 1911–1966 | SBB Sion – Brig 1919–1927 | EB Hasle-Rüegsau – Langnau 1919–1932
Earlier three-phase electrifications : Riffelalptram 1898–1960 | Hotel tram Évian-les-Bains 1898–1908 | Wöllersdorf military track 1902–1911 | BrMB Brunnen-Morschach Railway 1905–1969 | CFHMP Luchon – Superbagnières de Luchon 1912–1966 | Mühleggbahn 1950–1975 | RAG cog railway opencast mine Gruhlwerk 1927–1949
Test operations: Three-phase test operation from Siemens & Halske | Ganz test track on Óbuda Island | Three-phase test operation Brig – Iselle