HVDC Visby-Nas

HVDC Visby-Nas

The HVDC Visby-Nas is a bipolar HVDC electric power transmission system between Visby and a wind power centre near Nas on Gotland, Sweden. The project went into service in 1999. The system operates at 80 kV with a maximum power of 50 megawatts. This HVDC system allows for voltage regulation in the connected AC systems.

Because obtaining a right-of-way for an overhead line is a lengthy and expensive procedure, the 70 kilometer line is constructed as an underground cable. Since an alternating current three-phase underground cable would have been more expensive, the HVDC system was selected for this project.

External links

* [http://www.abb.com/GLOBAL/GAD/GAD02181.NSF/viewUNID/C1256D71001E0037C1256A1400317EEE!OpenDocument Gotland: the first commercial HVDC Light project]


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