Châteauguay direct current back-up
Coordinates: 45 ° 15 ′ 11 " N , 73 ° 52 ′ 10" W.
The Châteauguay direct current back-link is the largest direct current back-up link in North America with a maximum transmission capacity of 1000 MW . The plant is located near the Canadian town of Châteauguay and connects the power grids of Hydro-Québec on the Canadian side and the New York Power Authority (NYPA) on the US side. Due to a lack of synchronicity , the two power grids operated with alternating voltage and a line frequency of 60 Hz cannot be switched directly together.
Technical specifications
The approximately 3.5 hectare facility was built from 1983 to 1984 by Brown, Boveri & Cie (BBC) and Siemens and consists of two separate direct current short couplings with a transmission capacity of 500 MW per coupling including the associated outdoor switch panels . The intermediate circuit is operated with a direct voltage of 140 kV. The connection to the three-phase network of Hydro-Québec is carried out with 315 kV and on the NYPA side with 120 kV. Electrical energy can optionally be transmitted in either direction. In 2009, the ABB system was expanded to include a new control and monitoring device.
Individual evidence
- ↑ Châteauguay back-to-back upgrade. techn. Description, requested on March 15, 2011, engl.