HVDC Italy–Corsica–Sardinia
Power transmission line between Corsica, Sardinia and mainland Italy / From Wikipedia, the free encyclopedia
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The HVDC Italy–Corsica–Sardinia (also called SACOI; Sardinia–Corsica–Italy) is an HVDC interconnection used for the exchange of electric energy between the Italian mainland, Corsica and Sardinia. It is unusual, having more than two converter stations as part of a single HVDC system, and (as of 2012) is one of only two multi-terminal HVDC systems in operation in the world (the other multi-terminal scheme being the Quebec – New England Transmission system linking northeastern United States with Quebec in Canada).
HVDC Italy–Corsica–Sardinia | |
---|---|
Location | |
Country | Italy France |
From | Suvereto 43°03′10″N 10°41′42″E |
Passes through | Lucciana, Corsica 42°31′40″N 9°26′59″E |
To | Codrongianos, Sardinia 40°39′07″N 8°42′48″E |
Ownership information | |
Operator | Terna |
Construction information | |
Manufacturer of substations | Ansaldo English Electric Alstom |
Commissioned | 1967, 1988, 1992 |
Technical information | |
Type | overhead lines submarine cables |
Type of current | HVDC |
Total length | 385 km (239 mi) |
Power rating | 300 MW |
DC voltage | 200 kV |
No. of poles | 1 |
The scheme is a monopole using a mixture of overhead line and submarine cable for the 200 kV high voltage conductor, and sea return for the neutral current. The overhead lines and submarine cables are duplicated, with both circuits being installed on the same towers.[1]
The scheme was constructed in three phases.