LS Cable reports significant HVDC cable certification
LS Cable & System reports that the South Korean company has met the Conseil International des Grands Reseaux Electriques (CIGRE) international technical standard for 250kV HVDC XLPE cable products, an accomplishment that it said that means the company has matched the capabilities of its overseas competitors.
A press release said that the long-term reliability test saw 463kV applied at the maximum allowable temperature of 90°C after which the cable was heated and cooled repeatedly for an entire month while electric current flowed continually (the max. temp. of the new conductor is 90°C compared with the max. temp. of existing conductors being 55°C). "The new cable performed flawlessly during the entire month-long test," it said.
The cable plays a vital role in a demanding process, the release said. Extra high-voltage direct current transmission is a method of supplying electricity by converting the AC power produced by a power plant into DC power, transmitting it over a long distance then converting it back to AC again at the receiving end. Its advantage is the ability to transmit large quantities of electric power with minimal loss over long distances. "The extra high-voltage cable used for this purpose must be durable enough to withstand the high voltage load produced during DC transmission. LS Cable & System is the only company in Korea to produce such an HVDC cable. Importantly, this cable passed the long-term reliability test with a high score establishing LS Cable & System as a producer of next-generation cable products."
This cable was developed by LS Cable & System as part of a consortium consisting of the Korean Institute of Electrical Engineers, Korea Electronics Technology Institute, Korea Institute of Ceramic Engineering & Technology, LG Chem, and five universities (Hanyang Univ., Chungbuk National Univ., Daejin University, Hoseo Univ. and Honam Univ.). The cable is the product of a special project carried out as a national project sponsored by the Korea Institute of Energy Technology Evaluation and Planning. On August 28, it was selected by the Ministry of Science, ICT & Future Planning as one of the best national R&D projects of 2012. All tests were successfully conducted at the Gochang underground cable testing ground of KEPCO, which is certified by KOLAS (Korea Laboratory Accreditation Scheme).
"The size of the HVDC market is growing very quickly with expectations that it will amount to over KRW70 trillion by 2020," the release said. "With this new product LS Cable & System has thus strengthened its bridgehead for making inroads into the global HVDC market and expects to grow in proportion with the overall market."
The release noted that last April, LS Cable & System entered into an agreement with the Danish Energy Authority to supply 285kV HVDC submarine cables and connectors. "The company is working hard to penetrate global markets," it said.