This station is a key component in the 1.92GW HVDC link that transmits electricity from the Cahora Bassa hydro plant in Mozambique over 1,417km to the grid in South Africa.
The latest project, which involves replacement of key equipment, including direct current smoothing reactors and high-voltage transformers, is expected to enhance power availability and improve system reliability.
As part of the turnkey project, the Switzerland-based group will also supply and install arresters and measuring equipment.
In addition, the project would enable HCB to honor its power purchase agreement with South African utility Eskom.
The company said the DC equipment will be supplied in 2013 while transformers a year later.
ABB Power Systems division head Brice Koch said, "The Songo HVDC link supports the integration of renewable energy and helps meet the growing demand for electricity."
