Radisson Substation
Encyclopedia
Radisson Substation is a large electrical substation
located near Radisson
on the Route de la Baie James highway. The switching station, owned by Hydro-Québec
, is the largest substation in its power grid
, covering an area of 100 football fields. Electrical power heading into the switchyard is collected via several relatively short alternating current
(AC) 735 kilovolt (kV) and AC 315 kV power lines coming from hydroelectric plants like the Robert-Bourassa power station
, part of the James Bay Project
, located 16 km (10 mi) away. The power from these lines is either raised to AC 735 kV from AC 315 kV, statically inverted to high-voltage direct current
(HVDC) +/- 450 kV, or unchanged (735 kV to 735 kV). The amount of electrical energy passing through the substation is 6,600 megawatts (MW). Two AC 735 kV lines and one HVDC +/- 450 kV line
, part of the James Bay transmission system, transfer this electrical energy over a distance of 1000 km (621.4 mi) to Montreal
and the Northeast United States.
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions...
located near Radisson
Radisson, Quebec
Radisson is a small village situated near the Robert-Bourassa hydroelectric power station on the La Grande River in the James Bay region of Quebec...
on the Route de la Baie James highway. The switching station, owned by Hydro-Québec
Hydro-Québec
Hydro-Québec is a government-owned public utility established in 1944 by the Government of Quebec. Based in Montreal, the company is in charge of the generation, transmission and distribution of electricity across Quebec....
, is the largest substation in its power grid
Hydro-Québec's electricity transmission system
Hydro-Québec's electricity transmission system is an expansive, international power transmission system located in Quebec, Canada with extensions into the Northeastern United States...
, covering an area of 100 football fields. Electrical power heading into the switchyard is collected via several relatively short alternating current
Alternating current
In alternating current the movement of electric charge periodically reverses direction. In direct current , the flow of electric charge is only in one direction....
(AC) 735 kilovolt (kV) and AC 315 kV power lines coming from hydroelectric plants like the Robert-Bourassa power station
Robert-Bourassa generating station
The Robert-Bourassa generating station is a hydroelectric power station on the La Grande River that is part of Hydro-Québec's James Bay Project in Canada...
, part of the James Bay Project
James Bay Project
The James Bay Project is a series of hydroelectric development with a combined installed capacity of over 16,000 megawatts built since 1974 for Hydro-Québec by the on the La Grande and other rivers of Northern Quebec....
, located 16 km (10 mi) away. The power from these lines is either raised to AC 735 kV from AC 315 kV, statically inverted to high-voltage direct current
High-voltage direct current
A high-voltage, direct current electric power transmission system uses direct current for the bulk transmission of electrical power, in contrast with the more common alternating current systems. For long-distance transmission, HVDC systems may be less expensive and suffer lower electrical losses...
(HVDC) +/- 450 kV, or unchanged (735 kV to 735 kV). The amount of electrical energy passing through the substation is 6,600 megawatts (MW). Two AC 735 kV lines and one HVDC +/- 450 kV line
Quebec - New England Transmission
The Quebec – New England Transmission is a long-distance high-voltage direct current line between Radisson, Quebec and Sandy Pond in Ayer, Massachusetts...
, part of the James Bay transmission system, transfer this electrical energy over a distance of 1000 km (621.4 mi) to Montreal
Montreal
Montreal is a city in Canada. It is the largest city in the province of Quebec, the second-largest city in Canada and the seventh largest in North America...
and the Northeast United States.
See also
- Hydro-QuébecHydro-QuébecHydro-Québec is a government-owned public utility established in 1944 by the Government of Quebec. Based in Montreal, the company is in charge of the generation, transmission and distribution of electricity across Quebec....
- Hydro-Québec's electricity transmission systemHydro-Québec's electricity transmission systemHydro-Québec's electricity transmission system is an expansive, international power transmission system located in Quebec, Canada with extensions into the Northeastern United States...
- Quebec - New England TransmissionQuebec - New England TransmissionThe Quebec – New England Transmission is a long-distance high-voltage direct current line between Radisson, Quebec and Sandy Pond in Ayer, Massachusetts...