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- HVDC_Gotland abstract "The HVDC Gotland, on the Swedish east coast, was the first fully commercial static plant for high voltage direct current transmission in the world. The first HVDC Gotland link (Gotland 1) went into service in 1954. It could transfer 20 megawatts over a 98-kilometer-long submarine cable between Västervik on the mainland and Ygne on the island of Gotland, with a voltage of 100kV. As a static inverter, Mercury arc valves were used. In 1970 the service was re-engineered to transmission capacity of 30 megawatts at a voltage of 150kV by using the first thyristor module for HVDC applications. However even this capacity was not high enough and in 1983 a new monopolar link, HVDC Gotland 2 with a transmission capacity of 130MW and a transmission voltage of 150kV was established. It consists of a 92.9 kilometers long cable with a single copper conductor of 800 mm2 cross section, from which 92 kilometres are submarine and 0.9 kilometres underground. Beside this, HVDC Gotland 2 has a 6.6 kilometres long overhead powerline section between Västervik static inverter plant and the Swedish Coast. It has 2 Aluminium conductors each with a cross section of 910 mm2, which are installed on wooden poles - perhaps the only HVDC powerline using such poles. In 1987 HVDC Gotland 3, a further monopolar link, with a transmission capacity of 130MW and transmission voltage of 150kV was installed. It consists of a 98 kilometers long cable with a single copper conductor of 800 mm2 cross section. 92 kilometres of this cable are laid in the sea and 6 kilometres underground on land.The grounding electrode of the Västervik Inverter Station is situated at Almvik on Östra Eknö, that of Ygne Inverter Station at Gravfält. Both electrodes are used for Gotland 2 and Gotland 3 and are situated in sea-water filled basins close to the sea. At Almvik there are 2 such bassins, while Gravfällt uses only one. The basin design of the electrodes prevents fishes from getting too close to the electrodes, which may harm them.Almvik electrode is connected with Västervik Inverter Station by an 18.95 kilometres long line with 4 overhead line and 3 submarine cable sections for strait crossings. The overhead line sections, which have a total length of 17 kilometres are installed on wooden poles and consist of 2 Aluminium conductors each with 910 mm2 cross section. The total length of the cable sections amounts to 1.95 kilometres and consist of 2 cables each with 1000 mm2 cross section. The connection between Ygne Inverter Station and Gravfält Electrode has a length of 12.75 kilometres. It consists of a 12 kilometres long overhead line on wooden poles, which uses 2 Aluminium conductors each with 910 mm2 cross section and a 0.75 kilometres long underground cable consisting of 2 Aluminium conductors each with 1000 mm2 cross section.".
- HVDC_Gotland wikiPageExternalLink GOTLAND.htm.
- HVDC_Gotland wikiPageExternalLink Gotland%20Pictures.pdf.
- HVDC_Gotland wikiPageExternalLink 8e63373c2cdc1cdac125774a0032c5ed.aspx.
- HVDC_Gotland wikiPageID "860779".
- HVDC_Gotland wikiPageRevisionID "549931878".
- HVDC_Gotland hasPhotoCollection HVDC_Gotland.
- HVDC_Gotland subject Category:Electric_power_infrastructure_in_Sweden.
- HVDC_Gotland subject Category:Gotland.
- HVDC_Gotland subject Category:HVDC_transmission_lines.
- HVDC_Gotland subject Category:Submarine_power_cables.
- HVDC_Gotland point "57.72883 16.649292".
- HVDC_Gotland type Artifact100021939.
- HVDC_Gotland type Cable102934168.
- HVDC_Gotland type Conductor103088707.
- HVDC_Gotland type Device103183080.
- HVDC_Gotland type HVDCTransmissionLines.
- HVDC_Gotland type Instrumentality103575240.
- HVDC_Gotland type Object100002684.
- HVDC_Gotland type PhysicalEntity100001930.
- HVDC_Gotland type PowerLine103995535.
- HVDC_Gotland type SubmarinePowerCables.
- HVDC_Gotland type Whole100003553.
- HVDC_Gotland type SpatialThing.
- HVDC_Gotland comment "The HVDC Gotland, on the Swedish east coast, was the first fully commercial static plant for high voltage direct current transmission in the world. The first HVDC Gotland link (Gotland 1) went into service in 1954. It could transfer 20 megawatts over a 98-kilometer-long submarine cable between Västervik on the mainland and Ygne on the island of Gotland, with a voltage of 100kV. As a static inverter, Mercury arc valves were used.".
- HVDC_Gotland label "HGÜ Gotland".
- HVDC_Gotland label "HVDC Gotland".
- HVDC_Gotland label "Liaison à courant continu Gotland".
- HVDC_Gotland sameAs HGÜ_Gotland.
- HVDC_Gotland sameAs Liaison_à_courant_continu_Gotland.
- HVDC_Gotland sameAs m.03j500.
- HVDC_Gotland sameAs Q1563629.
- HVDC_Gotland sameAs Q1563629.
- HVDC_Gotland sameAs HVDC_Gotland.
- HVDC_Gotland lat "57.72883".
- HVDC_Gotland long "16.649292".
- HVDC_Gotland wasDerivedFrom HVDC_Gotland?oldid=549931878.
- HVDC_Gotland isPrimaryTopicOf HVDC_Gotland.