Under the deal ABB will modernize the Highgate back-to-back converter station, which links the electrical systems of the state of Vermont in the US and the province of Quebec in Canada. A contract to import hydropower to Vermont from Quebec has recently been extended for another 25 years.
The project’s scope includes the installation of ABB’s state-of-the-art control and protection system MACH2, and replacement of the valves and valve cooling system. The planned outage time for the link is only 21 days – minimizing the impact of the station being out of service. The upgraded station – which was originally delivered by ABB in 1985 – is expected to be in operation by the end of 2012.
“The upgrade of the HVDC station will bring greater transmission efficiency, improve stability and provide greater security of power supply,” said Martin Gross, head of ABB’s Grid Systems business, a part of the Power Systems division.
