Konti–Skan
Kontiskan (also conti- Skan ) is the name of two high-voltage direct -current transmission systems between Denmark and Sweden. Built in 1965 Kontiskan 1 has an output of up to 250 MW at an operating voltage of 250 kV, which in 1988 built Kontiskan 2 a power of 300 MW at a voltage of 285 kV. Kontiskan is jointly operated by Svenska Kraftnät and Energinet.dk.
While the Kontiskan 1 until 2006, mercury arc rectifying were used as converter valves in the converter station, used the Kontiskan 2 for this - like all modern HVDC systems - from the beginning thyristors.
On the Danish side, the converter stations of the conti- Skan 1 and 2 in the immediate neighborhood are in Vester Hassing near Aalborg. From Vester Hassing leads a 34- kilometer-long, two-pole overhead line with the high voltage poles of conti- Skan 1 and conti- Skan 2 to the cable beginning at Stensnäs on the Danish coast, while two 27 km long underground cables to carry electricity to the other pole of conti- Skan 1 and 2 take over for grounding electrode in Soera.
A special feature of this line is that it is equipped only in the vicinity of the converter station and cable terminals in Stensnäs with a ground wire.
In Stensnäs the 23 km long undersea cable begins on the Danish island of Læsø. This connection consists of three parallel cables, which each have two conductor with a copper cross section of 310 square millimeters. One of these is used by the cable 1 and one of the Kontiskan Kontiskan 2. In the third conductor from the cable part 1 and the other of Kontiskan Kontiskan of 2 is used.
The Kontskan crosses the island Læsø with a 17 km long two-pole overhead line. Between Læsø and Sweden each a single pole copper cable were laid with a cross section of 1.200 square millimeters for the Kontiskan 1 and 2. From the Swedish coast led a 38- kilometer transmission line to the converter station of the continuous -Skan 1 at Stenkullen. The first 9 km of this line can be used 1 and 2 of Kontiskan. East of Brännemysten the masts bear the electrode line, which comes from the common electrode at Risø and runs up to the cable terminal at Brattas as Underground and submarine. From there it runs as a separate transmission line in a northerly direction until Brännemysten and from there on the mast of the conti- Skan, namely as a ground wire isolated on top of the mast, but in contrast to such against the masts.
In contrast to Kontiskan 1, the converter station of Kontiskan 2 lies in a valley at Lindome, south of Gothenburg 1 in the immediate vicinity of the pipeline route Kontiskan
The last 30 kilometers of the continent -Skan 1 are laid on guyed aluminum truss masts with an unusually low weight of only 800 kilograms.
Shortly before the introduction to the converter station Stenkullen divides the continent -Skan 1, two masts with the three-phase line of Stenkullen after Holmbakullen. This is probably the only place besides the converter station of HVDC Volgograd -Donbass on the dam of the hydroelectric power station Volgograd, where this is done.