Baltic Cable
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Baltic Cable | |
---|---|
HVDC | |
Total length | 262 km (163 mi) |
No. of transmission towers | 40 |
Power rating | 600 MW |
AC voltage | 380 kV |
DC voltage | 450 kV |
No. of poles | 1 |
No. of circuits | 1 |
The Baltic Cable is a
. Its maximum transmission power is 600 megawatts (MW).The Baltic Cable uses a transmission
Route
This section may require cleanup to meet Wikipedia's quality standards. The specific problem is: Inline coordinate overload. Should be moved from the article body to a map. (August 2013) |
The Baltic Cable starts in Germany at the converter station at Lübeck-Herrenwyk, which is on the site of a former coal-fired power station, It crosses the river Trave in a channel 6 metres (20 ft) below the bottom of the river and then follows its course as sea cable laid at the eastern side of the river. After crossing the Priwall Peninsula the cable runs parallel to the coast of Mecklenburg-Vorpommern, before turning north-easterly toward Sweden. At sea, it crosses the submarine cable of HVDC Kontek. This is the only crossing of two submarine HVDC cables in the Baltic Sea and one of the only few worldwide.[citation needed]
From the landing point at the southern coast of Sweden, the powerline transitions to an overhead line a few kilometres inland. It runs to a termination tower in Kruseberg which is attached to a 400 kV/130 kV substation of the Swedish power grid.
The anode, which is situated in the Baltic Sea, consists of 40 titanium nets each with a surface of 20 m2, which are laid on the sea bottom under plastic tubes and stones. It is connected to Kruseberg converter station with a 23-kilometre-long underground and submarine power line, which consists of two parallel-connected cables with 630 mm2 cross section.
The cathode is situated in the Baltic Sea north of Elmenhorst. It consists of a bare copper ring with a 2-kilometre diameter. It is connected to the static inverter plant in Lübeck-Herrenwyk with a 32-kilometre-long cable. The first 20 kilometres of this cable have a cross section of 1400 mm2 and the last of 800 mm2. This cable is laid in the tunnel under Trave River at a distance of 2.5 metres from the high voltage cable. The separation reduces the magnetic field, which may affect compasses of vessels in this highly frequented area. As the cable is a monopolar line, it produces much higher magnetic fields than bipolar cables with the same ratings.[citation needed]
Operation
Because this overhead line can generate radio interference, there is a highly effective active filter system installed at the Kruseberg converter station. In the Lübeck-Herrenwyk converter station, there is no requirement for such a system, because there is no overhead powerline section on the German side.
The cable cannot be operated at the maximum transmission rating of 600 megawatts, because the 380 kV line which begins at the converter station of Lübeck-Herrenwyk ends at the
In the area of the converter station there is also a 110 kV/220 kV sub-station, fed by two 110 kV circuits from the Lübeck-Siems sub-station. There is no transformer for coupling the 380 kV- and the 110 kV-grid in the area of the Lübeck-Herrenwyk converter station.[citation needed]
In 2016, the owner Statkraft started a court case against Swedish authorities in disagreements over profits from electricity trade in the cable.[3][4]
In the night from April 16, 2017 to April 17, 2017 on the electrode cable on Priwall peninsula a fault occurred, which resulted in the generation of hydrogen at the fault location as it acted as cathode. The hydrogen got ignited by the generated heat and a 3 metres high flame shot off the ground. As there is no device monitoring the state of the electrode cable, no alert was made to the operators. Fire brigades were first not able to extinguish the fire, but the flame went out when the current was switched off.[5]
Expansion schemes
Of the two originally planned 380 kV lines to Lübeck (from
There is still the option to build a 380 kV line from Lübeck to another 380 kV substation in
A transmission rating of 600 MW should be possible via a new 220 kV cable and a
See also
- Electricity sector in Sweden
- List of high-voltage transmission links in Sweden
- Estlink, cable between Estonia and Finland
- LitPol Link, cable between Lithuania and Poland
References
- ^ "Baltic Cable - An HVDC cable links Sweden with Germany". ABB. n.d. Retrieved February 3, 2018.
No. of poles: 1
- ^ "SVC Systems for E.ON in Lübeck-Siems". Retrieved 3 January 2017.
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2016-08-21. Retrieved 2016-08-20.
{{cite web}}
: CS1 maint: archived copy as title (link) - ^ "Sverige nekter Statkraft å tjene penger på kabel". Teknisk Ukeblad. 19 August 2016. Retrieved 20 August 2016.
- ^ "Stichflamme aus der Tiefe: Baltic Cable explodiert auf dem Priwall". 17 April 2016.
- "Produktblad Cable" (PDF). Baltic Cable AB. n.d. Archived (PDF) from the original on 2018-02-03. Retrieved February 3, 2018.
- "Produktblad Converter" (PDF). Baltic Cable AB. n.d. Archived (PDF) from the original on 2018-02-03. Retrieved February 3, 2018.
External links
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (September 2009) |
- Baltic Cable AB website
- ABB: Baltic Cable - An HVDC cable links Sweden with Germany
- https://web.archive.org/web/20051115122606/http://www.transmission.bpa.gov/cigresc14/Compendium/BALTIC.htm
- https://web.archive.org/web/20051115122606/http://www.transmission.bpa.gov/cigresc14/Compendium/Baltic%20Pictures.pdf