Levis De-Icer

46.709444444444 - 71.191388888889695Koordinaten: 46 ° 42 ' 34 "N, 71 ° 11' 29" W

The Lévis - icer is the first HVDC transmission system, which is not used for energy transmission, but for de-icing of overhead lines. The in Lévis substation installed south of Quebec City plant has a maximum power output of 250 MW and a bipolar supply voltage of ± 17.4 kV. The DC power for de-icing can be up to 8 kA. In addition to the de-icing system which also serves as a static var compensator (SVC ).

The Lévis - icer went into operation in 2008, was built by Areva and serves several lines with lengths of 27 km to 242 km in length, which are operated under normal operation with three-phase alternating current at 315 kV and 735 kV.

The facility was built as a result of a large Eissturmes in January 1998. Latter had a large number of poles and overhead lines of Hydro-Québec destroyed and there had been widespread power outages that lasted in some regions up to a few weeks. The Lévis - icer was built in subsequent years to avoid such weather-related power outages.