Information AboutCross-skagerak |
| CATEGORIES ABOUT CROSS-SKAGERAK | |
| submarine power cables | |
| energy in denmark | |
| electric power in norway | |
| SHOPPER'S DELIGHT | |
|
This facility was built with thyristor valves. In its initial configuration it had a capacity of 1000 megawatts across a distance of 250 kilometres. The 230 kilometre line of Cross-Skagerak consists of a 100 kilometre overhead line and a 130 kilometre underwater cable. When installed this underwater cable was the world's lomgest underwater HVDC power cable. The cable is laid in a water depth of 500 metres. In 1993 the scheme was extended by HVDC Cross-Skagerak 3. Cross-Skagerak 3 is a monopolar line for a voltage of 350 kV with a capacity of 500 MW. In installing Cross-Skagerak 3, the old poles Cross-Skagerak 1 and Cross-Skagerak 2 were converted to monopolar HVDC schemes, which run with opposite polarity to Cross-Skagerak 3. The use of three underwater cables allows the interchange of Hydroelectric Power , thermal generation, and wind generation between Norway and Denmark, allowing overall lower cost of electricity production. For such a long underwater cable, an AC transmission shceme would not be feasible since too much of the cable's capacity would be consumed by the Capacitance of the cable itself. High-voltage DC makes long underwater power transmission cables economically feasible. EXTERNAL LINKS
|