HVDC Troll
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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.
Quick Facts Location, Country ...
HVDC Troll | |
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![]() 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 |
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In 2013 work started on a new rectifier station at Kollsnes for supplying the two new compressors being installed on Troll A.