16 February 2010 - ABB has won an order worth $107million from SNEL (Société Nationale d’Électricité), the national power company in the Democratic Republic of Congo, to upgrade technology on an electricity transmission system.The contract was signed in the fourth quarter of 2009.
ABB will refurbish the stations that convert alternating current to direct current and back on the 560 MW Inga-Kolwezi power transmission link. The 1,700 km system was built by ABB in 1982 and was, at that time, the world’s longest transmission line.
The link uses HVDC (high-voltage direct current) technology to transmit power from the Inga Falls hydropower station on the Congo River to the mining district of Katanga in the south-east of the country. It also enables excess power to be exported to the Southern African Power Pool countries.
ABB will be responsible for system engineering, including design, supply and installation of valves, high-voltage apparatus and a control and protection system. The project is scheduled for delivery in 2013.