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The GK Vienna-Southeast (abbreviation for direct current clutch vienna southeast) was the HVDC back-to-back station operated in the transformer station Vienna Southeast between 1993 and 1996 for the coupling of the Austrian and Hungarian electricity grids. This plant built by Siemens possessed a maximum transmission rate of 600 megawatts at an operating voltage of 142kV and was to a large extent identical to the HVDC-back-to-back station in Etzenricht, likewise built by Siemens, in its technology. In contrast to the latter the HVDC Vienna-Southeast became not immediately dispensable 1995 after the synchronous interconnection of the Eastern and Western European electricity grids, because it would have given regulation-technical problems because of the missing country-wide 380kV-grid in Austria, if one had hooked up the nets directly at that time. These problems were overcome in 1996 with start-up of frequency controlling means in the South Polish hard coal power stations, so that the GK Vienna Southeast became dispensable only one year later in October 1996 and could be shut down. It is to be dismantled like the plant in Etzenricht and be established to a location in Eastern Europe in proximity of the border of the GUS states. Up to this time most asset components might remain still on the area of the transformer station.Source: http://de.wikipedia.org/wiki/GK_Wien-S%FCdost
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