Power and automation technology group ABB has secured a contract worth about $130m from Great River Energy to upgrade a high-voltage direct current connection (HVDC) transmission system in the US.
ABB will be responsible for the upgrade and life extension of the converter valves, valve cooling systems, control and protection systems as well as other associated equipment at the converter stations.
The project will help modernise the HVDC system and increase grid efficiency.
The ± 400kV HVDC system was commissioned by ABB in 1978. The system offers a link for transferring 1,000MW of electricity between Underwood, North Dakota and Buffalo, Minnesota, a distance of 700km.
ABB power grids division president Claudio Facchin said: “The upgrade will extend life and greatly enhance reliability of this important transmission link, thereby helping to secure power supply for consumers in the region. The focus on service and lifetime support is a key element of ABB’s Next Level Strategy.”