NKT has completed repair works to two interconnectors between Denmark and Norway.
The operation has been successfully completed and the power cables Skagerrak 1 and 2 are now back in operation.
Denmark’s and Norway’s power grids are connected through four high voltage direct current (HVDC) links crossing the Skagerrak strait, with a 1700MW capacity.
When Skagerrak 1 and 2 were damaged, the Norwegian grid operator Statnett awarded NKT the order for the cable repair of the 250 kV MI-insulated HVDC power cables.
The operation was completed by mid-October after “quick mobilisation and efficient execution” bringing the two power cable connections back in operation.
The cut-and-seal operation and deburial was carried out by Statnett and NKT performed all other repair activities.
A third-party construction vessel, Olympic Zeus, was converted into a cable repair vessel by mobilising NKT’s cable handling system.
NKT delivered the repair joint kits, performed the jointing and cable burial.