HVDC Haenam-Cheju
Encyclopedia
The HVDC Haenam–Cheju is a 101 kilometers long HVDC submarine cable
connection between the South Korean Mainland and the island of Jeju
in South Korea
, which went into service in 1996. The connection consists of two monopolar 180kV-lines with a maximum transmission power of 300 megawatts.
The line runs from the Haenam converter station situated at 34°22′03"N 126°35′34"E to Jeju converter station at 33°32′06"N 126°35′44"E and has no overhead line sections. The first 5 kilometres on Korean Mainland are underground, the rest of the cable is laid partially buried in the sea. As the station on Jeju is close to the sea, all equipment is there encapseled in order to avoid getting polluted by sea salt. The system is designed to take over the full power supply of Jeju and is therefore equipped with synchronous compensators delivering the require reactive power when there is no generation unit at Jeju in work. These synchronous compensators can be started with gas turbines, which allows starting the HVDC when there is no power available.
Submarine cable
Submarine cable may refer to:*Submarine communications cable*Submarine power cable...
connection between the South Korean Mainland and the island of Jeju
Jeju-do
Jeju-do is the only special autonomous province of South Korea, situated on and coterminous with the country's largest island. Jeju-do lies in the Korea Strait, southwest of Jeollanam-do Province, of which it was a part before it became a separate province in 1946...
in South Korea
South Korea
The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...
, which went into service in 1996. The connection consists of two monopolar 180kV-lines with a maximum transmission power of 300 megawatts.
The line runs from the Haenam converter station situated at 34°22′03"N 126°35′34"E to Jeju converter station at 33°32′06"N 126°35′44"E and has no overhead line sections. The first 5 kilometres on Korean Mainland are underground, the rest of the cable is laid partially buried in the sea. As the station on Jeju is close to the sea, all equipment is there encapseled in order to avoid getting polluted by sea salt. The system is designed to take over the full power supply of Jeju and is therefore equipped with synchronous compensators delivering the require reactive power when there is no generation unit at Jeju in work. These synchronous compensators can be started with gas turbines, which allows starting the HVDC when there is no power available.
External links
- http://web.archive.org/web/20051115122606/www.transmission.bpa.gov/cigresc14/Compendium/HAENAM.htm
- http://web.archive.org/web/20051115122606/www.transmission.bpa.gov/cigresc14/Compendium/Haenam%20Pictures.pdf