The HVDC Troll is a bipolar high-voltage direct current

High-voltage direct current

A high-voltage, direct current electric power transmission system uses direct current for the bulk transmission of electrical power, in contrast with the more common alternating current systems. For long-distance transmission, HVDC systems may be less expensive and suffer lower electrical losses...

 (HVDC) electric power transmission

Electric power transmission

Electric-power transmission is the bulk transfer of electrical energy, from generating power plants to Electrical substations located near demand centers...

 line for the supply of the gas compressor station on the offshore construction work Troll A

Troll A platform

The Troll A platform is a condeep offshore natural gas platform in the Troll gas field off the west coast of Norway. It is the tallest construction that has ever been moved to another position, relative to the surface of the Earth, and is among the largest and most complex engineering projects in...

. It consists of dual set of a 68 kilometer long bipolar submarine cable designed for ±60 kV between the gas compressor station Troll A and the static inverter station Kollsnes

Kollsnes

Kollsnes is a natural gas processing plant owned and operated by Statoil on the southern part of the island Oøy in Øygarden, Norway. It processes the natural gas from the gass fields Troll, Kvitebjørn and Visund with a capacity of 143 million standard cubic meters of natural gas per...

 in Norway. The HVDC Troll has a maximum transmission rate of 84 megawatts.

Sites

! Site >

Coordinates
Kollsnes Static Inverter Plant	60°33′01"N 4°50′26"E
Offshore platform Troll A	60°40′00"N 3°40′00"E

External links

• Troll HVDC Light transmission, Norway, The ABB Group.