Dürnrohr substation

Panoramic view of the eastern 400 kV outdoor switchgear panel

Network control room

The Dürnrohr substation is a substation between the 110 kV , 220 kV and 380 kV levels in Zwentendorf-Dürnrohr in Lower Austria . It is part of the Austrian 380 kV high voltage ring and is operated by the Austrian Power Grid (APG).

history

The plant went into operation in 1976 and was the starting point for the first inner Austrian 380 kV line via Etzersdorf to Ernsthofen . It takes over the transport of the electricity generated by the Altenwörth Danube power plant and the Dürnrohr coal-fired power plant . The Zwentendorf nuclear power plant would also have fed into this substation, but never went into operation. In addition, the substation also contains a network control room, some of which receives and transmits data via radio relay, which is why there has been a radio tower at 48 ° 19 ′ 45.3 ″ N, 15 ° 53 ′ 0 ″ E on the station area since 1976. This tower was originally 75 meters high. Today its height is only 63 meters.

At the beginning of the 1980s, the Dürnrohr substation was expanded to include the Dürnrohr DC short coupling . This enabled electricity to be exchanged with the Czech Republic, whose electricity grid was not in sync with the Austrian one at the time. The interconnection in the continental European network took place in 1995. This made the direct current back-to-back link unnecessary. Since 2007, only the converter hall, which is now used as a workshop, has been there. There is also an SVC system and extensive reactive power compensators .

At the end of the 1980s, together with the newly built Dürnrohr power station, a 380 kV line was built via the Bisamberg and Sarasdorf substations to the south-east of Vienna . This line is part of the 380 kV high-voltage ring and is one of the few in Austria designed to accommodate four 380 kV circuits, but was initially only operated with two circuits. In the course of increasing energy generation by wind turbines in the Weinviertel , the two missing power circuits were set up between 2013 and 2014.