Porjus Hydroelectric Power Station
Encyclopedia
Porjus power station is one of the oldest and largest power plants in Sweden
, situated near Porjus
. It was built 1910-1915 and has a power of 440 MW. Besides three-phase AC, the plant originally also generated single phase 15 Hz AC for railway traction and hence, two single-phase 80 kV power lines
ran along the Iron Ore Line Malmbanan where it was transformed down to 16 kV in substations. However this system was later abandoned in favor of rotary converter stations. The original machines for single phase AC were subsequently scrapped.
The construction of the Porjus power station out in the wilderness is considered a pioneering achievement. The material for the founding work had to be carried in backpacks over a 44 km (3000 feet) trail in uninhabitated land before any infrastructure was built. In the early 1970s, a new power station was built but the old monumental brick building has been kept as a cultural heritage site with most of the machinery intact, with Vattenfall
doing daily tours for visitors during the summertime.
Sweden
Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....
, situated near Porjus
Porjus
Porjus is a locality situated in Jokkmokk Municipality, Norrbotten County, Sweden with 317 inhabitants in 2005. Geographically it is situated by the shores of Lule River at 499 meter height....
. It was built 1910-1915 and has a power of 440 MW. Besides three-phase AC, the plant originally also generated single phase 15 Hz AC for railway traction and hence, two single-phase 80 kV power lines
Overhead power line
An overhead power line is an electric power transmission line suspended by towers or utility poles. Since most of the insulation is provided by air, overhead power lines are generally the lowest-cost method of transmission for large quantities of electric energy...
ran along the Iron Ore Line Malmbanan where it was transformed down to 16 kV in substations. However this system was later abandoned in favor of rotary converter stations. The original machines for single phase AC were subsequently scrapped.
The construction of the Porjus power station out in the wilderness is considered a pioneering achievement. The material for the founding work had to be carried in backpacks over a 44 km (3000 feet) trail in uninhabitated land before any infrastructure was built. In the early 1970s, a new power station was built but the old monumental brick building has been kept as a cultural heritage site with most of the machinery intact, with Vattenfall
Vattenfall
Vattenfall is a Swedish power company. The name Vattenfall is Swedish for waterfall, and is an abbreviation of its original name, Royal Waterfall Board...
doing daily tours for visitors during the summertime.