15 kV AC railway electrification

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A pylon of a single phase AC 110 kV-powerline near Bartholomä in Germany. Lines of these type are used in Germany to supply electric railways with single phase AC at 16.7 hertz. In the substations of the railway, transformers are used to step it down to 15 kV.

The 15 kV, 16.7 Hz AC railway electrification system is used in Germany, Austria, Switzerland, Sweden and Norway. The high voltage enables high power transmission with low losses powering traction motors available since the beginning of the 20th century. Railway electrification in late 20th century tended to use 25 kV, 50 Hz AC systems which has become the preferred standard for new railway electrifications but extensions of the existing 15 kV networks are not completely unlikely.

Due to high conversion costs, it is unlikely that existing 15 kV, 16.7 Hz systems will be converted to 25 kV, 50 Hz despite the fact that this would reduce the weight of the on-board step-down transformers to one third that of the present devices.

History

The first electrified railways used series-wound DC motors, first at 600 V and then 1,500 V. Areas with 3 kV DC catenaries (primarily in Eastern Europe) used two 1,500 V DC motors in series. But even at 3 kV, the current needed to power a heavy train (particularly in rural and mountainous areas) can be excessive. Although increasing the transmission voltage decreases the current and associated resistive losses for a given power, insulation limits make higher voltage traction motors impractical. Transformers on each locomotive are thus required to step high transmission voltages down to practical motor operating voltages. Because transformers require alternating current (AC), high voltage electrified railways adopted AC along with the electric power distribution system (see War of Currents).

The 50 Hz (60 Hz in North America) AC grid was already established at the beginning of the 20th century. Although series-wound motors can in principle run on AC as well as DC (the reason they are also known as universal motors) large series-wound traction motors had problems with such high frequencies. High inductive reactance of the motor windings caused commutator flashover problems and the non-laminated magnetic pole-pieces originally designed for DC exhibited excessive eddy current losses. Using a lower AC frequency alleviated both problems.

In the German-speaking countries, high-voltage electrification began at 16 23 hertz, exactly one third of the national power grid frequency of 50 Hz. This facilitated the operation of rotary converters from the grid frequency and allowed dedicated railway power generators to operate at the same shaft speed as a standard 50 Hz generator by reducing the number of poles by a factor of three. For example, a generator turning at 1,000 rpm would be wound with two poles rather than six.

Separate plants supply railway power in Austria, Switzerland and Germany, except for Mecklenburg-Western Pomerania and Saxony-Anhalt; converters powered by the grid supply railway power in those two German states plus Sweden and Norway. Norway also has two hydro-electric power plants dedicated for railway power with 16 23 hertz output.

The first generators were synchronous AC generators or synchronous transformers; however, with the introduction of modern double fed induction generators, the control current induced an undesired DC component, leading to pole overheating problems. This was solved by shifting the frequency slightly away from exactly ⅓ the grid frequency; 16.7 hertz was arbitrarily chosen to remain within the tolerance of existing traction motors. Austria, Switzerland and Southern Germany switched their power plants to 16.7 Hz on 16 October 1995 at 12:00 CET.[1][2] Note that regional electrified sections run by synchronous generators keep their frequency of 16 23 Hz just as Sweden and Norway still run their railway networks at 16 23 Hz throughout.

One of the disadvantages of 16.7 Hz locomotives as compared to 50 Hz or 60 Hz locomotives is the heavier transformer required to reduce the overhead line voltage to that used by the motors and their speed control gear. Low frequency transformers need to have heavier magnetic cores and larger windings for the same level of power conversion. (See effect of frequency on the design of transformers.) The heavier transformers also lead to higher axle loads than for those of a higher frequency. This, in turn, leads to increased track wear and increases the need for more frequent track maintenance. The Czech Railways encountered the problem of the reduced power handling of lower frequency transformers when they rebuilt some 25 kV AC, 50 Hz locomotives (series 340) to operate on 15 kV AC, 16.7 Hz lines. As a result of using the same transformer cores (originally designed for 50 Hz) at the lower frequency, the transformers had to be de-rated to one third of their original power handling capability, thereby reducing the available tractive effort by the same amount (to around 1,000 kW).[clarification needed]

These drawbacks, plus the need for a separate supply infrastructure and the lack of any technical advantages with modern motors and controllers has limited the use of ​16 23 Hz and 16.7 Hz beyond the original five countries. Most other countries electrified their railways at the utility frequency of 50/60 Hz. Newer European electrification is mostly 25 kV AC at 50 Hz (primarily in Eastern Europe). Conversion to this voltage/frequency requires higher voltage insulators and greater clearance between lines and bridges and other structures. This is now standard for new overhead lines as well as for modernizing old installations.

Simple European standardization with an alignment of voltage/frequency across Europe is not necessarily cost-effective since trans-border traction is more limited by the differing national standards in other areas. To equip an electric locomotive with a transformer for two or more input voltages is cheap compared to the cost of installing multiple train protection systems[citation needed] and to run them through the approval procedure to get access to the railway network in other countries. However, some new high-speed lines to neighbouring countries are already intended to be built to 25 kV (e.g. in Austria to Eastern Europe). Newer locomotives are always built with asynchronous motor control systems that have no problem with a range of input frequencies including DC. However the Deutsche Bahn train operator does still use older models from the standard electric locomotive series - even though some are now as much as 50 years old. As soon as these obsolescent models are decommissioned, it will be easier to standardise, but this may take a few decades to happen. Meanwhile, the Deutsche Bahn tends to order train sets that are capable of running multiple electrification systems.

Distribution networks

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In Germany (except Mecklenburg-Western Pomerania and Saxony-Anhalt), Austria and Switzerland, there is a separate single-phase power distribution grid for railway power at 16.7 Hz; the voltage is 110 kV in Germany and Austria and 132 kV in Switzerland. This system is called the centralized railway energy supply.

In Sweden, Norway, Mecklenburg-Western Pomerania and Saxony-Anhalt, the power is taken directly from the three-phase grid (110 kV at 50 Hz), converted to low frequency single phase and fed into the overhead line. This system is called the decentralized (i.e. local) railway energy supply.

Generation and conversion

The centralized system is supplied by special power plants that generate 110 kV (or 132 kV in the Swiss system) AC at 16.7 Hz and by rotary converters or AC/AC converters that are supplied from the national power grid (e.g. 110 kV, 50 Hz), they convert it to 55-0-55 kV (or 66-0-66 kV) AC at 16.7 Hz. The 0 V point is connected to earth through an inductance so that each conductor of the single phase AC power line has a voltage of 55 kV (or 66 kV) with respect to earth potential. This is similar to split-phase electric power systems and results in a balanced line transmission. The inductance through which the earthing is done is designed to limit earth currents in cases of faults on the line. At the transformer substations, the voltage is transformed from 110 kV (or 132 kV) AC to 15 kV AC and the energy is fed into the overhead line.

Asynchronous converters

The frequency of 16.7 Hz depends on the necessity to avoid synchronism in parts of the rotary machine, which consists principally of a three phase asynchronous motor and a single phase synchronous generator. Since synchronism sets in at a frequency of 16 23 Hz (according to the technical details) in the single phase system, the frequency of the centralized system was set to 16.7 Hz.

Power plants providing 110 kV, 16.7 Hz, are either dedicated to generating this specific single phase AC or have special generators for the purpose, such as the Neckarwestheim nuclear power plant or the Walchensee hydroelectric power station.

Synchronous converters

The power for the decentralized system is taken directly from the national power grid and directly transformed and converted into 15 kV, 16 23 Hz by synchronous-synchronous-converters or static converters. Both systems need additional transformers. The converters consist of a three-phase synchronous motor and a single-phase synchronous generator. The decentralized system in the north-east of Germany was established by the Deutsche Reichsbahn in the 1980s, because there was no centralized system available in these areas.

Facilities for 15 kV AC railway electrification in Germany, Austria and Switzerland

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Germany, Austria and Switzerland operate the largest interconnected 15 kV AC system with central generation, and central and local converter plants.

Germany

Substations

In these facilities electricity is transformed down from 110 kV-level of DB to 15 kV. There is no conversion or generation of power.

Facility Coordinates
Aalen Lua error in package.lua at line 80: module 'strict' not found.
Adelsheim Lua error in package.lua at line 80: module 'strict' not found.
Almstedt Lua error in package.lua at line 80: module 'strict' not found.
Amstetten Lua error in package.lua at line 80: module 'strict' not found.
Appenweier Lua error in package.lua at line 80: module 'strict' not found.
Aschaffenburg Lua error in package.lua at line 80: module 'strict' not found.
Aubing Lua error in package.lua at line 80: module 'strict' not found.
Augsburg Lua error in package.lua at line 80: module 'strict' not found.
Bachstedt (planned) Lua error in package.lua at line 80: module 'strict' not found.
Baden-Baden Lua error in package.lua at line 80: module 'strict' not found.
Bad Reichenhall Lua error in package.lua at line 80: module 'strict' not found.
Barnstorf Lua error in package.lua at line 80: module 'strict' not found.
Bebra Lua error in package.lua at line 80: module 'strict' not found.
Bengel Lua error in package.lua at line 80: module 'strict' not found.
Berlin-Schönefeld Lua error in package.lua at line 80: module 'strict' not found.
Biblis Lua error in package.lua at line 80: module 'strict' not found.
Bingen Lua error in package.lua at line 80: module 'strict' not found.
Böhla Lua error in package.lua at line 80: module 'strict' not found.
Boizenburg Lua error in package.lua at line 80: module 'strict' not found.
Borken ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Borne Lua error in package.lua at line 80: module 'strict' not found.
Braunschweig Lua error in package.lua at line 80: module 'strict' not found.
Buchholz Lua error in package.lua at line 80: module 'strict' not found.
Burgdorf Lua error in package.lua at line 80: module 'strict' not found.
Burgweinting Lua error in package.lua at line 80: module 'strict' not found.
Chemnitz ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Datteln Lua error in package.lua at line 80: module 'strict' not found.
Denkendorf Lua error in package.lua at line 80: module 'strict' not found.
Donauwörth Lua error in package.lua at line 80: module 'strict' not found.
Dörstewitz (planned) Lua error in package.lua at line 80: module 'strict' not found.
Dortmund Lua error in package.lua at line 80: module 'strict' not found.
Dortmund-Scharnhorst Lua error in package.lua at line 80: module 'strict' not found.
Dresden ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Duisburg Lua error in package.lua at line 80: module 'strict' not found.
Düsseldorf Lua error in package.lua at line 80: module 'strict' not found.
Ebensfeld Lua error in package.lua at line 80: module 'strict' not found.
Eggolsheim Lua error in package.lua at line 80: module 'strict' not found.
Eichenberg Lua error in package.lua at line 80: module 'strict' not found.
Eilenburg Lua error in package.lua at line 80: module 'strict' not found.
Eischleben (planned) Lua error in package.lua at line 80: module 'strict' not found.
Eisenach Lua error in package.lua at line 80: module 'strict' not found.
Elmshorn Lua error in package.lua at line 80: module 'strict' not found.
Elsfleth Lua error in package.lua at line 80: module 'strict' not found.
Emden Lua error in package.lua at line 80: module 'strict' not found.
Emskirchen Lua error in package.lua at line 80: module 'strict' not found.
Essen Lua error in package.lua at line 80: module 'strict' not found.
Eutingen Lua error in package.lua at line 80: module 'strict' not found.
Eystrup Lua error in package.lua at line 80: module 'strict' not found.
Fallersleben Lua error in package.lua at line 80: module 'strict' not found.
Finnentrop Lua error in package.lua at line 80: module 'strict' not found.
Flieden Lua error in package.lua at line 80: module 'strict' not found.
Flörsheim Lua error in package.lua at line 80: module 'strict' not found.
Freiburg Lua error in package.lua at line 80: module 'strict' not found.
Friedberg Lua error in package.lua at line 80: module 'strict' not found.
Fronhausen Lua error in package.lua at line 80: module 'strict' not found.
Fulda Lua error in package.lua at line 80: module 'strict' not found.
Gabelbach Lua error in package.lua at line 80: module 'strict' not found.
Garssen Lua error in package.lua at line 80: module 'strict' not found.
Geisenbrunn Lua error in package.lua at line 80: module 'strict' not found.
Geltendorf Lua error in package.lua at line 80: module 'strict' not found.
Gemünden Lua error in package.lua at line 80: module 'strict' not found.
Genshagener Heide Lua error in package.lua at line 80: module 'strict' not found.
Gleidingen Lua error in package.lua at line 80: module 'strict' not found.
Golm Lua error in package.lua at line 80: module 'strict' not found.
Gössnitz (old) Lua error in package.lua at line 80: module 'strict' not found.
Gössnitz (neu) Lua error in package.lua at line 80: module 'strict' not found.
Grafing Lua error in package.lua at line 80: module 'strict' not found.
Grönhart Lua error in package.lua at line 80: module 'strict' not found.
Grossheringen Lua error in package.lua at line 80: module 'strict' not found.
Grosskorbetha Lua error in package.lua at line 80: module 'strict' not found.
Grünauer Kreuz ( switching post) Lua error in package.lua at line 80: module 'strict' not found.
Güsen Lua error in package.lua at line 80: module 'strict' not found.
Hagen Lua error in package.lua at line 80: module 'strict' not found.
Hahn (planned) Lua error in package.lua at line 80: module 'strict' not found.
Halbe (fed from 15 kV line from Neuhof) Lua error in package.lua at line 80: module 'strict' not found.
Haltingen Lua error in package.lua at line 80: module 'strict' not found.
Hamburg-Harburg ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Hameln Lua error in package.lua at line 80: module 'strict' not found.
Haren Lua error in package.lua at line 80: module 'strict' not found.
Heeren Lua error in package.lua at line 80: module 'strict' not found.
Herbolzheim Lua error in package.lua at line 80: module 'strict' not found.
Herchen Lua error in package.lua at line 80: module 'strict' not found.
Hessental Lua error in package.lua at line 80: module 'strict' not found.
Höchst Lua error in package.lua at line 80: module 'strict' not found.
Holzkirchen Lua error in package.lua at line 80: module 'strict' not found.
Ihringshausen Lua error in package.lua at line 80: module 'strict' not found.
Ilmenau-Wolfsberg (planned) Lua error in package.lua at line 80: module 'strict' not found.
Ingolstadt Lua error in package.lua at line 80: module 'strict' not found.
Jübek ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Kaiserslautern Lua error in package.lua at line 80: module 'strict' not found.
Karow Lua error in package.lua at line 80: module 'strict' not found.
Karthaus Lua error in package.lua at line 80: module 'strict' not found.
Kirchheim Lua error in package.lua at line 80: module 'strict' not found.
Kirchmöser Lua error in package.lua at line 80: module 'strict' not found.
Klebitz Lua error in package.lua at line 80: module 'strict' not found.
Koblenz Lua error in package.lua at line 80: module 'strict' not found.
Köln ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Köln-Mülheim Lua error in package.lua at line 80: module 'strict' not found.
Körle Lua error in package.lua at line 80: module 'strict' not found.
Kreiensen Lua error in package.lua at line 80: module 'strict' not found.
Kyhna Lua error in package.lua at line 80: module 'strict' not found.
Landshut Lua error in package.lua at line 80: module 'strict' not found.
Leer Lua error in package.lua at line 80: module 'strict' not found.
Lehrte ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Leipzig-Wahren Lua error in package.lua at line 80: module 'strict' not found.
Leonberg Lua error in package.lua at line 80: module 'strict' not found.
Limburg Lua error in package.lua at line 80: module 'strict' not found.
Löhne Lua error in package.lua at line 80: module 'strict' not found.
Lüneburg Lua error in package.lua at line 80: module 'strict' not found.
Magdeburg Lua error in package.lua at line 80: module 'strict' not found.
Mainbernheim Lua error in package.lua at line 80: module 'strict' not found.
Mannheim Lua error in package.lua at line 80: module 'strict' not found.
Markt Bibart Lua error in package.lua at line 80: module 'strict' not found.
Markt Schwaben Lua error in package.lua at line 80: module 'strict' not found.
Marl ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Meckesheim Lua error in package.lua at line 80: module 'strict' not found.
Mehrhoog Lua error in package.lua at line 80: module 'strict' not found.
Montabaur Lua error in package.lua at line 80: module 'strict' not found.
Mörlach Lua error in package.lua at line 80: module 'strict' not found.
Mottgers Lua error in package.lua at line 80: module 'strict' not found.
Mühlacker Lua error in package.lua at line 80: module 'strict' not found.
Mühlanger Lua error in package.lua at line 80: module 'strict' not found.
Muldenstein Lua error in package.lua at line 80: module 'strict' not found.
Müllheim Lua error in package.lua at line 80: module 'strict' not found.
München-Freimann Lua error in package.lua at line 80: module 'strict' not found.
München-Ost Lua error in package.lua at line 80: module 'strict' not found.
Münster Lua error in package.lua at line 80: module 'strict' not found.
Murnau Lua error in package.lua at line 80: module 'strict' not found.
Nannhofen Lua error in package.lua at line 80: module 'strict' not found.
Neckarelz Lua error in package.lua at line 80: module 'strict' not found.
Neumarkt (Oberpfalz) Lua error in package.lua at line 80: module 'strict' not found.
Neudittendorf Lua error in package.lua at line 80: module 'strict' not found.
Neuhof Lua error in package.lua at line 80: module 'strict' not found.
Neumünster Lua error in package.lua at line 80: module 'strict' not found.
Neu-Ulm ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Niedernhausen Lua error in package.lua at line 80: module 'strict' not found.
Niemberg Lua error in package.lua at line 80: module 'strict' not found.
Nörten-Hardenberg Lua error in package.lua at line 80: module 'strict' not found.
Nürnberg ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Nürnberg-Stein ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Oberacker Lua error in package.lua at line 80: module 'strict' not found.
Oberdachstetten Lua error in package.lua at line 80: module 'strict' not found.
Oelde Lua error in package.lua at line 80: module 'strict' not found.
Offenbach am Main Lua error in package.lua at line 80: module 'strict' not found.
Offenburg Lua error in package.lua at line 80: module 'strict' not found.
Orscheid Lua error in package.lua at line 80: module 'strict' not found.
Osnabrück Lua error in package.lua at line 80: module 'strict' not found.
Plattling Lua error in package.lua at line 80: module 'strict' not found.
Plochingen Lua error in package.lua at line 80: module 'strict' not found.
Pretzier Lua error in package.lua at line 80: module 'strict' not found.
Pulling Lua error in package.lua at line 80: module 'strict' not found.
Rathenow Lua error in package.lua at line 80: module 'strict' not found.
Remagen Lua error in package.lua at line 80: module 'strict' not found.
Rethen Lua error in package.lua at line 80: module 'strict' not found.
Riesa Lua error in package.lua at line 80: module 'strict' not found.
Ritterhude Lua error in package.lua at line 80: module 'strict' not found.
Rödelheim Lua error in package.lua at line 80: module 'strict' not found.
Rohrbach Lua error in package.lua at line 80: module 'strict' not found.
Röhrmoos Lua error in package.lua at line 80: module 'strict' not found.
Rosenheim Lua error in package.lua at line 80: module 'strict' not found.
Rotenburg ( new) Lua error in package.lua at line 80: module 'strict' not found.
Rotenburg ( old) Lua error in package.lua at line 80: module 'strict' not found.
Roth (planned) Lua error in package.lua at line 80: module 'strict' not found.
Rottweil Lua error in package.lua at line 80: module 'strict' not found.
Rudersdorf Lua error in package.lua at line 80: module 'strict' not found.
Saalfeld Lua error in package.lua at line 80: module 'strict' not found.
Saarbrücken ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Salzbergen Lua error in package.lua at line 80: module 'strict' not found.
Saubachtal (planned) Lua error in package.lua at line 80: module 'strict' not found.
Siegburg Lua error in package.lua at line 80: module 'strict' not found.
Sindorf Lua error in package.lua at line 80: module 'strict' not found.
Singen Lua error in package.lua at line 80: module 'strict' not found.
Solpke Lua error in package.lua at line 80: module 'strict' not found.
Sommerau Lua error in package.lua at line 80: module 'strict' not found.
Steinbach am Wald Lua error in package.lua at line 80: module 'strict' not found.
Stetzsch Lua error in package.lua at line 80: module 'strict' not found.
Stolberg Lua error in package.lua at line 80: module 'strict' not found.
Stuttgart-Rohr Lua error in package.lua at line 80: module 'strict' not found.
Stuttgart-Zazenhausen Lua error in package.lua at line 80: module 'strict' not found.
Traunstein Lua error in package.lua at line 80: module 'strict' not found.
Uelzen Lua error in package.lua at line 80: module 'strict' not found.
Urbach Lua error in package.lua at line 80: module 'strict' not found.
Vaihingen / Enz Lua error in package.lua at line 80: module 'strict' not found.
Wächtersbach Lua error in package.lua at line 80: module 'strict' not found.
Waiblingen Lua error in package.lua at line 80: module 'strict' not found.
Waigolshausen Lua error in package.lua at line 80: module 'strict' not found.
Warburg Lua error in package.lua at line 80: module 'strict' not found.
Weimar ( part of converter) Lua error in package.lua at line 80: module 'strict' not found.
Weiterstadt Lua error in package.lua at line 80: module 'strict' not found.
Werdau Lua error in package.lua at line 80: module 'strict' not found.
Wickrath Lua error in package.lua at line 80: module 'strict' not found.
Wiesbaden Lua error in package.lua at line 80: module 'strict' not found.
Wiesental Lua error in package.lua at line 80: module 'strict' not found.
Wolfratshausen Lua error in package.lua at line 80: module 'strict' not found.
Wörsdorf Lua error in package.lua at line 80: module 'strict' not found.
Wunstorf Lua error in package.lua at line 80: module 'strict' not found.
Würzburg Lua error in package.lua at line 80: module 'strict' not found.
Wurzen Lua error in package.lua at line 80: module 'strict' not found.
Wustermark Lua error in package.lua at line 80: module 'strict' not found.
Zapfendorf (shut down) Lua error in package.lua at line 80: module 'strict' not found.

Switching stations

Stations for connecting/isolating parts of the system.

Facility Coordinates
Gabelbach Lua error in package.lua at line 80: module 'strict' not found.
Kirchhellen Lua error in package.lua at line 80: module 'strict' not found.
Neckarwestheim Lua error in package.lua at line 80: module 'strict' not found.
Nenndorf Lua error in package.lua at line 80: module 'strict' not found.
Nitzahn Lua error in package.lua at line 80: module 'strict' not found.
Schönarts Lua error in package.lua at line 80: module 'strict' not found.

Central converter plants

In these facilities the AC from the public grid is transformed and converted into the single phase AC and fed into the railway current distribution grid. At some facilities, power is also fed to the overhead line. Conversion is done by rotary converters or electronic inverters.

Facility Year of commissioning Power Technology Coordinates
Aschaffenburg 2010 60 MW GTO-Thyristor Lua error in package.lua at line 80: module 'strict' not found.
Borken 1963 50 MW Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Bremen 100 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Chemnitz 1965 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Dresden 1977 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Düsseldorf 30 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Hamburg-Harburg Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Jübek 14 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Karlsfeld 100 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Karlsruhe 1957 53 MW Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Köln 1957 75 MW Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Lehrte 1963 (rotary converter)/ 2010 (inverter) 37 MW (rotary converter)/ 64 MW (inverter) Rotary converter/ inverter Lua error in package.lua at line 80: module 'strict' not found.
Limburg 120 MW IGCT inverter Lua error in package.lua at line 80: module 'strict' not found.
Marl 1963 25 MW Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Neckarwestheim 1989 140 MW Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Neckarwestheim II 2011 140 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Neu-Ulm Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Nürnberg 1939 34 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Nürnberg 2012 75 IGBT-Inverter Lua error in package.lua at line 80: module 'strict' not found.
Pforzheim (shut down) [1] Rotary converter
Saarbrücken Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Singen (shut down in 2002) Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Thyrow 2004/2005 8×15 = 120 MW GTO-thyristor Lua error in package.lua at line 80: module 'strict' not found.
Weimar 1973 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.

Local converter plants

In these facilities the AC from the public grid is transformed and converted into the single phase AC and fed to the overhead line. Conversion is done by rotary converters or electronic inverters.

Facility Year of commissioning Power Technology Coordinates
Adamsdorf 1984 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Anklam Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Berlin-Rummelsburg 1984 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Bützow (demolished) Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Cottbus 1989 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Doberlug-Kirchhain 1981 (Rotary converter), 2008 (Inverter) Inverter Lua error in package.lua at line 80: module 'strict' not found.
Eberswalde 1987 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Falkenberg 1987 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Oder Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Lalendorf Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Löwenberger Land Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Ludwigsfelde 1981 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Lübeck-Genin 2008 Inverter  ?
Magdeburg (shut down) 1974 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Neustadt (Dosse) Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Oberröblingen Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Prenzlau Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Rosslau Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Rostock 1985 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Schwerin 1987 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Senftenberg 1988 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Stendal Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Stralsund Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Wittenberg 1978 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Wittenberge 1987 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Wolkramshausen Inverter Lua error in package.lua at line 80: module 'strict' not found.
Wünsdorf 1982 Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Wustermark Rotary converter Lua error in package.lua at line 80: module 'strict' not found.

Power plants

Facility Year of commissioning Power Type State Coordinates
Bad Abbach 2000 3.5 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Aufkirchen Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Bad Reichenhall 1912 7.2 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Bergheim 1970 23.7 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Bertoldsheim 1967 18.9 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Bittenbrunn 1969 20.2 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Datteln Coal-fired power plant North Rhine-Westphalia Lua error in package.lua at line 80: module 'strict' not found.
Eitting Hydroelectric Power Plant Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Ingolstadt 1971 19.8 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Kammerl 1905 Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Kirchmöser 160 MW Gas turbine power plant Brandenburg Lua error in package.lua at line 80: module 'strict' not found.
Langenprozelten 1976 160 MW Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Lausward 1957 520 MW Gas turbine power plant North Rhine-Westphalia Lua error in package.lua at line 80: module 'strict' not found.
Lünen 1984 110 MW Coal-fired power plant North Rhine-Westphalia Lua error in package.lua at line 80: module 'strict' not found.
Mannheim 1955 190 MW Coal-fired power plant Baden-Württemberg Lua error in package.lua at line 80: module 'strict' not found.
Muldenstein (retired) 1912 11.3 MW Coal-fired power plant Saxony-Anhalt Lua error in package.lua at line 80: module 'strict' not found.
Mittelsbüren 110 MW Coal-fired power plant Bremen Lua error in package.lua at line 80: module 'strict' not found.
Neckarwestheim I 1976 190 MW Nuclear power plant Baden-Württemberg Lua error in package.lua at line 80: module 'strict' not found.
Pfrombach Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Vohburg Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.
Walchensee 1924 Hydroelectric power plant Bavaria Lua error in package.lua at line 80: module 'strict' not found.

Points where two powerlines for traction current crosses each other without interconnection

Lines Coordinates
Flieden-Bebra / Fulda-Mottgers Lua error in package.lua at line 80: module 'strict' not found.
Bebra-Borken / Kirchheim-Körle Lua error in package.lua at line 80: module 'strict' not found.
Karlsruhe-Mühlacker /Vaihingen-Graben/Neudorf Lua error in package.lua at line 80: module 'strict' not found.
Orscheid-Köln / Orscheid-Montabaur Lua error in package.lua at line 80: module 'strict' not found.

Border-crossing power lines

Germany – Austria

Line Coordinates
Walchenseekraftwerk – Zirl Lua error in package.lua at line 80: module 'strict' not found.
Traunstein – Steinsdorf Lua error in package.lua at line 80: module 'strict' not found.

Former border between West and East Germany

Line Coordinates
Lehrte – Heeren Lua error in package.lua at line 80: module 'strict' not found.
Bebra – Weimar Lua error in package.lua at line 80: module 'strict' not found.
Steinfeld am Wald – Saalfeld Lua error in package.lua at line 80: module 'strict' not found.

Switzerland

Substations

In these facilities electricity is transformed down from 132 kV or 66 kV to 15 kV. There is no conversion or generation of power.

Facility Coordinates
Balerna Lua error in package.lua at line 80: module 'strict' not found.
Biel Lua error in package.lua at line 80: module 'strict' not found.
Brugg Lua error in package.lua at line 80: module 'strict' not found.
Burgdorf Lua error in package.lua at line 80: module 'strict' not found.
Bussigny Lua error in package.lua at line 80: module 'strict' not found.
Chur Lua error in package.lua at line 80: module 'strict' not found.
Croy Lua error in package.lua at line 80: module 'strict' not found.
Courtemaîche Lua error in package.lua at line 80: module 'strict' not found.
Delémont Lua error in package.lua at line 80: module 'strict' not found.
Eglisau Lua error in package.lua at line 80: module 'strict' not found.
Emmenbrücke Lua error in package.lua at line 80: module 'strict' not found.
Etzwilen Lua error in package.lua at line 80: module 'strict' not found.
Farsch Lua error in package.lua at line 80: module 'strict' not found.
Filisur (RhB) Lua error in package.lua at line 80: module 'strict' not found.
Flüelen Lua error in package.lua at line 80: module 'strict' not found.
Fribourg Lua error in package.lua at line 80: module 'strict' not found.
Frutigen Lua error in package.lua at line 80: module 'strict' not found.
Gampel Lua error in package.lua at line 80: module 'strict' not found.
Genève-Tuleries Lua error in package.lua at line 80: module 'strict' not found.
Giornico Lua error in package.lua at line 80: module 'strict' not found.
Gland Lua error in package.lua at line 80: module 'strict' not found.
Hendschiken Lua error in package.lua at line 80: module 'strict' not found.
Kandersteg Lua error in package.lua at line 80: module 'strict' not found.
Küblis (RhB) Lua error in package.lua at line 80: module 'strict' not found.
Melide Lua error in package.lua at line 80: module 'strict' not found.
Muttenz Lua error in package.lua at line 80: module 'strict' not found.
Neuchâtel Lua error in package.lua at line 80: module 'strict' not found.
Killwangen Lua error in package.lua at line 80: module 'strict' not found.
Olten Lua error in package.lua at line 80: module 'strict' not found.
Puidoux Lua error in package.lua at line 80: module 'strict' not found.
Rapperswil SG Lua error in package.lua at line 80: module 'strict' not found.
Rivera Lua error in package.lua at line 80: module 'strict' not found.
Roche Lua error in package.lua at line 80: module 'strict' not found.
Romont FR Lua error in package.lua at line 80: module 'strict' not found.
Rotkreuz Lua error in package.lua at line 80: module 'strict' not found.
Sagliains (RhB) Lua error in package.lua at line 80: module 'strict' not found.
Saint Léonard Lua error in package.lua at line 80: module 'strict' not found.
Sankt Margrethen Lua error in package.lua at line 80: module 'strict' not found.
Sargans Lua error in package.lua at line 80: module 'strict' not found.
Seebach Lua error in package.lua at line 80: module 'strict' not found.
Selfranga Lua error in package.lua at line 80: module 'strict' not found.
Sihlbrugg Lua error in package.lua at line 80: module 'strict' not found.
Sils (RhB) Lua error in package.lua at line 80: module 'strict' not found.
Stein AG Lua error in package.lua at line 80: module 'strict' not found.
Steinen Lua error in package.lua at line 80: module 'strict' not found.
Tavanasa (RhB) Lua error in package.lua at line 80: module 'strict' not found.
Thun Lua error in package.lua at line 80: module 'strict' not found.
Wanzwil Lua error in package.lua at line 80: module 'strict' not found.
Wetzikon ZH Lua error in package.lua at line 80: module 'strict' not found.
Winterthur-Grüze Lua error in package.lua at line 80: module 'strict' not found.
Yverdon Lua error in package.lua at line 80: module 'strict' not found.
Ziegelbrücke Lua error in package.lua at line 80: module 'strict' not found.
Zürich Lua error in package.lua at line 80: module 'strict' not found.

Central converter plants

In these facilities the AC from public grid is transformed and converted into the single phase AC and fed into the railway current distribution grid. At some facilities, power is also fed to the overhead line. Conversion is done by rotary converters or electronic inverters.

Facility Year of commissioning Power Technology used Coordinates
Bever (RhB) Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Landquart (RhB) Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Giubiasco Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Kerzers Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Massaboden Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Rupperswil Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Seebach Rotary converter Lua error in package.lua at line 80: module 'strict' not found.
Wimmis Rotary converter Lua error in package.lua at line 80: module 'strict' not found.

Switching stations

Stations for connecting/isolating parts of the system.

Facility Coordinates
Zollikofen Lua error in package.lua at line 80: module 'strict' not found.

Power plants

Facility Year of commissioning Power Type Coordinates
Amsteg 1922 55 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Le Châtelard VS Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Etzelwerk Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Göschenen Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Klosters Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Gösgen 51,3 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Lungerersee 1994 9 MW Hydroelectric Power Plant Lua error in package.lua at line 80: module 'strict' not found.
Massaboden 1916 7,2 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Mühleberg 1921 45 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Ritom 1920 Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Rupperswil 1945 Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Vernayaz Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Wassen Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.

Border-crossing power lines

Germany–Switzerland

Line Coordinates
Holdingen – Muttenz Lua error in package.lua at line 80: module 'strict' not found.
Singen – Etzwilen Lua error in package.lua at line 80: module 'strict' not found.

Austria

Substations

In these facilities electricity is transformed down from 110 kV to 15 kV. No conversion or generation of power takes place.

Facility Coordinates
Absdorf Lua error in package.lua at line 80: module 'strict' not found.
Angern Lua error in package.lua at line 80: module 'strict' not found.
Amstetten (Österreich) Lua error in package.lua at line 80: module 'strict' not found.
Asten Lua error in package.lua at line 80: module 'strict' not found.
Attnang-Puchheim Lua error in package.lua at line 80: module 'strict' not found.
Bad Vöslau Lua error in package.lua at line 80: module 'strict' not found.
Bludenz Lua error in package.lua at line 80: module 'strict' not found.
Bruck Mur Lua error in package.lua at line 80: module 'strict' not found.
Dölsach Lua error in package.lua at line 80: module 'strict' not found.
Dorfgastein Lua error in package.lua at line 80: module 'strict' not found.
Elsbethen Lua error in package.lua at line 80: module 'strict' not found.
Feldkirch Lua error in package.lua at line 80: module 'strict' not found.
Florisdorf Lua error in package.lua at line 80: module 'strict' not found.
Fritzens-Wattens Lua error in package.lua at line 80: module 'strict' not found.
Gaisbach Wartberg Lua error in package.lua at line 80: module 'strict' not found.
Golling-Abtenau Lua error in package.lua at line 80: module 'strict' not found.
Göpfritz Lua error in package.lua at line 80: module 'strict' not found.
Gries am Brenner Lua error in package.lua at line 80: module 'strict' not found.
Götzendorf Lua error in package.lua at line 80: module 'strict' not found.
Graz Lua error in package.lua at line 80: module 'strict' not found.
Haag Lua error in package.lua at line 80: module 'strict' not found.
Hohenau
Hütteldorf Lua error in package.lua at line 80: module 'strict' not found.
Kitzbühel Lua error in package.lua at line 80: module 'strict' not found.
Küpfern Lua error in package.lua at line 80: module 'strict' not found.
Landeck Lua error in package.lua at line 80: module 'strict' not found.
Mallnitz Lua error in package.lua at line 80: module 'strict' not found.
Marchtrenk Lua error in package.lua at line 80: module 'strict' not found.
Mariahof Lua error in package.lua at line 80: module 'strict' not found.
Matrei Lua error in package.lua at line 80: module 'strict' not found.
Meidling Lua error in package.lua at line 80: module 'strict' not found.
Mistelbach Lua error in package.lua at line 80: module 'strict' not found.
Münster
Parndorf Lua error in package.lua at line 80: module 'strict' not found.
Pettneu Lua error in package.lua at line 80: module 'strict' not found.
Pusarnitz Lua error in package.lua at line 80: module 'strict' not found.
Riedau Lua error in package.lua at line 80: module 'strict' not found.
Rohr Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau Lua error in package.lua at line 80: module 'strict' not found.
Sankt Pölten Lua error in package.lua at line 80: module 'strict' not found.
Sankt Veit Lua error in package.lua at line 80: module 'strict' not found.
Schladming Lua error in package.lua at line 80: module 'strict' not found.
Schlöglmühl Lua error in package.lua at line 80: module 'strict' not found.
Semmering Lua error in package.lua at line 80: module 'strict' not found.
Wien-Simmering Lua error in package.lua at line 80: module 'strict' not found.
Steindorf Lua error in package.lua at line 80: module 'strict' not found.
Tulln Lua error in package.lua at line 80: module 'strict' not found.
Unterberg Lua error in package.lua at line 80: module 'strict' not found.
Villach Lua error in package.lua at line 80: module 'strict' not found.
Wald am Schoberpass Lua error in package.lua at line 80: module 'strict' not found.
Wartberg an der Krems Lua error in package.lua at line 80: module 'strict' not found.
Wegscheid Lua error in package.lua at line 80: module 'strict' not found.
Wiener Neustadt Lua error in package.lua at line 80: module 'strict' not found.
Wörgl Lua error in package.lua at line 80: module 'strict' not found.
Zellerndorf Lua error in package.lua at line 80: module 'strict' not found.
Zirl (old) Lua error in package.lua at line 80: module 'strict' not found.
Zirl (neu) Lua error in package.lua at line 80: module 'strict' not found.

Central converter plants

In these facilities the AC from the public grid is transformed and converted into the single phase AC and fed into the railway current distribution grid. At some facilities, power is also fed to the overhead line. Conversion is done by rotary converters or electronic inverters.

Facility Year of commissioning Power Coordinates
Auhof 1956 90 MW Lua error in package.lua at line 80: module 'strict' not found.
Bergern 1983 Lua error in package.lua at line 80: module 'strict' not found.
Haiming 1995 Lua error in package.lua at line 80: module 'strict' not found.
Kledering 1989 Lua error in package.lua at line 80: module 'strict' not found.
Sankt Michael 1975 Lua error in package.lua at line 80: module 'strict' not found.

Power plants

Facility Year of commissioning Power Type Coordinates
Annabrücke 20 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Braz 1954 20 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Enzigerboden 20 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Fulpmes 1983 15 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Obervellach Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Schaltposten Schönberg Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Sankt Pantaleon Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Schneiderau Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Spullersee 1925 36 MW Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Steeg 1910 Hydroelectric power plant (only direct fed of overhead wire) Lua error in package.lua at line 80: module 'strict' not found.
Uttendorf Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.
Weyer Hydroelectric power plant Lua error in package.lua at line 80: module 'strict' not found.

Points, where two powerlines for traction current crosses each other without interconnection

Lines Coordinates
Sankt Johann im Pongau-Bruck/Fusch / Sankt Johann im Pongau-Selzthal Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau-Uttendorf / Sankt Johann im Pongau-Mallnitz Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau-Bruck/Fusch / Sankt Johann im Pongau-Mallnitz Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau-Schneiderau / Bruck/Fusch-Uttendorf Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau-Schneiderau / Uttendorf-Kitzbühl Lua error in package.lua at line 80: module 'strict' not found.
Sankt Johann im Pongau-Schneiderau / Uttendorf-Kitzbühl Lua error in package.lua at line 80: module 'strict' not found.
Bruck/Fusch-Enzingerboden / Uttendorf-Kitzbühl Lua error in package.lua at line 80: module 'strict' not found.
Uttendorf-Enzingerboden, Schneiderau Branch / Schneiderau-Enzingerboden Lua error in package.lua at line 80: module 'strict' not found.
Uttendorf-Enzingerboden / Schneiderau-Enzingerboden Lua error in package.lua at line 80: module 'strict' not found.
Uttendorf-Enzingerboden / Schneiderau-Enzingerboden Lua error in package.lua at line 80: module 'strict' not found.


Norway

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In Norway all electric railways use 16 kV 16​23 Hz AC [3] (except the Thamshavnbanen museum railway which uses 6.6 kV 25 Hz AC). The Oslo T-bane and tramways use 750 V DC power.

Sweden

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In Sweden most electric railways use 15 kV 16​23 Hz AC. Exceptions include: Saltsjöbanan and Roslagsbanan (1.5 kV DC), the Stockholm Metro (650 V and 750 V DC) and tramways (750 V DC). The Oresund Bridge linking Sweden and Denmark is electrified at 25 kV, Danish standard; the split is located on the Swedish side near the bridge. Only two-system trains (or diesel trains; rare) can pass the point.

See also

References

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External links

  1. Bahnstromsystem (German) railway electrification systems
  2. C. Linder (2002), "Umstellung der Sollfrequenz im zentralen Bahnstromnetz von ​16 23 Hz auf 16,70 Hz (English: Switching the frequency in train electric power supply network from 16 2/3 Hz to 16,70 Hz)" (in German), Elektrische Bahnen (Munich: Oldenbourg-Industrieverlag) Book 12, ISSN 0013-5437 
  3. Lua error in package.lua at line 80: module 'strict' not found.