LS Cable & System announced that it will commercialize the world’s largest transmission capacity ultra-high voltage direct current (HVDC) cable that increases transmission capacity by up to 50% for a new project.
A press release said that the new power cable will be exclusively supplied to the first phase of Korea Electric Power Corp.’s East Coast-Metropolitan Area (ECMA) transmission network, the largest HVDC project in Korea. The 525 kV high-temperature HVDC cable can achieve the record by increasing the allowable temperature of the conductor from 70°C to 90°C. It is scheduled to be deployed in the underground section of the first phase of the East Coast-Metropolitan Area HVDC in September.
The release said that while there have been cases of technological development overseas, this is the first time a mass-produced product is being applied to an actual transmission network. Use of DC transmission results in less transmission loss than existing alternating current and can transmit up to three times more power over long distances. The ECMA transmission network project is a national core power grid project to efficiently transfer power generated in the East Coast region to the metropolitan area. The first phase covers the East Coast-Singapyeong converter station section, and the second phase, to connect to the metropolitan area, is underway.
LS Cable noted it started developing HVDC cables in 2008, later than Europe (1950s) and Japan (1990s), and has since emerged as a leading company. It added that only six companies worldwide have commercialized this technology, with LS Cable being the only one in South Korea.
“Competitiveness in the HVDC market depends on securing commercialization technology,” said Lee In-ho, chief technology officer (CTO) of LS Cable. “Along with LS Marine Solutions, we plan to actively participate in major domestic and international projects such as the West Coast HVDC Energy Highway, East Coast-Metropolitan Area.