is the name of an high-voltage direct current
(HVDC) transmission facility between Tjele
) and Kristiansand
). It is owned and operated by Statnett
in Norway, and Energinet.dk
The Cross-Skagerrak 1–3 scheme consists of a overhead line and a underwater cable. The towers were originally constructed for four poles, but were rebuilt for three conductors (three poles) when Skagerrak 3 was established. Near Aggesund HVDC Cross-Skagerrak crosses Aggesund strait overhead on towers with a span.
For such a long submarine cable, an AC transmission scheme would not be feasible since too much of the cable's capacity would be consumed by the capacitance
of the cable itself.
Skagerrak 1 and 2
Cross-Skagerrak went in service in 1977 as a bipolar
HVDC scheme. This facility was built with thyristor
valves. When installed this underwater cable was the world's longest and deepest underwater HVDC power cable. The cable, manufactured by Alcatel
, is laid in a maximum water depth of .
Both cables have a capacity of 250 MW at 250 kV.
In 1993 the scheme was extended by HVDC... Read More