Neuhof Substation is a 110 kV substation in Neuhof, an urban part of

Bad Sachsa Bad Sachsa is a town in the district of Göttingen, in Lower Saxony, Germany. The town was one of the few municipalities in West Germany that imported electric power from former East Germany. This was done via Neuhof Substation. Geography Bad ...

, Lower Saxony. The Neuhof substation went in service in 1985 and was connected with a 110 kV-powerline for three phase alternating current with the Wolkramshausen substation in former

East Germany East Germany, officially known as the German Democratic Republic (GDR), was a country in Central Europe from Foundation of East Germany, its formation on 7 October 1949 until German reunification, its reunification with West Germany (FRG) on ...

. It was therefore one of the few substations in former

West Germany West Germany was the common English name for the Federal Republic of Germany (FRG) from its formation on 23 May 1949 until German reunification, its reunification with East Germany on 3 October 1990. It is sometimes known as the Bonn Republi ...

, into which electricity from GDR was fed. Through the Neuhof substation up to 40 MVA could be imported. Up to 25 MVA of the imported power could be fed via 5 rotary motor-generators, which were manufactured by Siemens and used for the compensation of frequency fluctuations of the East German power grid, into the power grid of West Germany. Additionally power was fed directly from the East German power grid into the grids of Bad Sachsa,

Walkenried Walkenried () is a municipality in the district of Göttingen, in Lower Saxony, Germany. It is situated in the southern Harz, approx. 15 km south of Braunlage, and 15 km northwest of Nordhausen. Walkenried was the seat of the ''Samtgem ...

, Zorge and Wieda. The converters consisted of a three-phase asynchronous motor with a short circuited rotor on the driving side and an asynchronous generator with a slip-ring fed rotor, whereby the frequency adjustment was made by a static frequency inverter, which feeds the rotor. Startup of a converter took place using the slip-ring rotor with a conventional starter circuit. After the converter had reached its nominal speed, the short circuited rotor was connected, which then took over the drive. In April 1990 the plant was shut down and between 2003 and 2005 the machines were dismantled. The machine halls stand still today and are used by Harzenergie for internal purposes.

External links

{{Commons category, Neuhof substation * http://www.stwbadsachsa.de/aktuell_geschichte.html * https://web.archive.org/web/20071008103508/http://www.walter-schossig.de/Deutsch/Literatur/Aufsatze/SD_PDF_6090.pdf 1985 establishments in West Germany Electric power transmission systems in Germany Converter stations Energy infrastructure completed in 1985 Osterode (district)