HVDC Troll

The HVDC Troll is a bipolar high-voltage direct current (HVDC) electric power transmission line for the supply of the gas compressor station on the offshore construction work Troll A platform. It consists of dual set of a 68-kilometre (42 mi) long bipolar submarine cable designed for ±60 kV between the inverter at the Troll A platform and the static rectifier station at Kollsnes in Norway. The HVDC Troll has a maximum transmission rate of 84 megawatt.

HVDC Troll
Map of HVDC Troll
Location
Country	Norway
Coordinates	60°33′01″N 4°50′26″E 60°40′00″N 3°40′00″E
From	Kollsnes Static Inverter Plant
Passes through	North Sea
To	Troll A platform
Ownership information
Owner	Equinor
Construction information
Manufacturer of conductor/cable	ABB
Expected	2015 (3rd and 4th line)
Commissioned	2005 (1st and 2nd line)
Technical information
Type	Submarine power cable
Type of current	HVDC
Total length	68 km (42 mi)
Power rating	84 MW 184 MW (after 2015)
AC voltage	132 kV (Kollsnes) 56 kV (Troll)
DC voltage	±60 kV
No. of poles	2
No. of circuits	2

In 2013 work started on a new rectifier station at Kollsnes for supplying the two new compressors being installed on Troll A.

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

See also

• List of high-voltage transmission links in Norway

References

Working Group on HVDC and FACTS Bibliography and Records (2008-07-07). "HVDC PROJECTS LISTING" (PDF). IEEE Transmission and Distribution Committee. Archived from the original (PDF) on 2008-12-15. Retrieved 2008-12-19.

External links

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