Sumitomo to replace 400 kV Kontek onshore cable

In: CablesInterconnectors
Sumitomo Electric Industries has been awarded a contract to replace the onshore part of the Kontek interconnector on the German side. The contract includes design, procurement, production, transport, civil work, and installation of XLPE HVDC cable and ancillary components. The turnkey contract also includes 10 years  of maintenance service, including emergency response, to minimize system unavailability.  

Managing Executive Officer of Sumitomo Electric, Yasuyuki Shibata, said: ‘Sumitomo Electric’s XLPE cable is the perfect solution for the requirement of KONTEK to retrofit aged fluid-filled cable systems to more reliable and environmentally friendly technology. Considering the fact that a number of cable systems in the world with old technologies need to be replaced in coming years, we are confident that our XLPE solution will become a benchmark in the industry.’

The 170 km
Kontek is an HVDC connection between Germany and Denmark. The 600 MW Kontek connection has been in service since 1995 and reached its operational age now. The German TSO, 50Hertz, started the subsoil investigation of the 14 km land route in December 2019. The land cable will run between the landing site in Markgrafenheide and the transformer station in Bentwisch. The new route of the cable will be laid parallel to the existing route during ongoing operations. The existing route will be rebuilt once the new route is operational.

The planning application for the new land cable was submitted to the Ministry of Energy, Infrastructure and Digitalization in Mecklenburg-Western Pomerania in November 2020. The 50 km long submarine part of the
link was replaced in 2010, after a series of faults in the previous cable.

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