Châteauguay HVDC-back-to-back station

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45.253055555556 - 73.869444444444Koordinaten: 45 ° 15 '11 "N, 73 ° 52' 10" W

The Châteauguay DC short coupling is the largest direct-current and short coupling in North America with a maximum transmission power of 1000 MW. The facility is located near the Canadian city Châteauguay and connects the power grids of the Hydro-Québec on ​​the Canadian side and the New York Power Authority ( NYPA ) on the U.S. side. Due to lack of synchronicity, the two operated with AC voltage and a line frequency of 60 Hz power grids can not be connected directly together.

Specifications

The 3.5 -hectare site was from 1983 to 1984 by the company Brown, Boveri & Cie ( BBC ) and Siemens to build and consists of two separate DC close couplings with a transmission capacity of 500 MW per clutch including associated outdoor switching fields. The intermediate circuit is operated with a DC voltage of 140 kV. The compound in the three-phase network of Hydro-Québec is done with 315 kV and on the NYPA page 120 kV. Electrical energy can be transmitted either in one of two directions. In 2009 the system from ABB has been extended to a new command and control facility.