|
Three-phase Railway Electrification
Three-phase AC railway electrification was used in Italy, Switzerland and the United States in the early twentieth century. Italy was the major user, from 1901 until 1976, although lines through two tunnels also used the system; the Simplon Tunnel between Switzerland and Italy from 1906 to 1930 (but not connected to the Italian system), and the Cascade Tunnel of the Great Northern Railway (U.S.), Great Northern Railway in the United States from 1909 to 1939. The first standard gauge line was in Switzerland, Burgdorf–Thun railway, from Burgdorf to Thun (), from 1899 to 1933. Advantages The system provides regenerative braking with the power fed back to the system, so is particularly suitable for mountain railways (provided the grid or another locomotive on the line can accept the power). The locomotives use three-phase induction motors. Lacking brushes and commutators, they require less maintenance. The early Italian and Swiss systems used a low frequency (16⅔ Hz), and a rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petit Train La Rhune
Petite or petite may refer to: * Petit (crater), a small, bowl-shaped lunar crater on Mare Spumans * ''Petit'' (EP), a 1995 EP by Japanese singer-songwriter Ua *Petit (typography), another name for brevier-size type * Petit four *Petit Gâteau * Petit Jean State Park, Arkansas, United States * Petit juror * Petite bourgeoisie in sociology * petite mutation, a mutation in yeast oxidative phosphorylation * Petite sizes in women's clothing *Petit's triangle (inferior lumbar triangle), see Petit's hernia People *A French or Catalan surname: **Adriana Petit (born 1984), Spanish multidisciplinary artist ** Alexis Thérèse Petit (1791–1820), French physicist **Amandine Petit (born 1997), French model, beauty pageant titleholder, and Miss France 2021 ** Antoine Petit (1722–1794), French physician ** Antoni Martà Petit, prime minister of Andorra ** François Pourfour du Petit (1664–1741), French anatomist ** Henriette Petit (1894-1983), Chilean painter **Jean-Martin Petit (1772†... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
