Under the terms of the contract, ABB will be responsible for the design, manufacturing, installation and testing the six water-cooled static excitation systems, complete with water-cooled transformers, and high- and low-voltage bus ducts, as well as the removal of existing equipment.
According to ABB, the Unitrol 6800 is the latest and powerful generation of static excitation systems, based on the company’s AC 800PEC control system. Delivery of the units is scheduled to begin in 2011 and will be completed in 2013.
Remo Lutolf, head of power electronics business unit at ABB, said: “Grand Coulee dam is the largest hydropower producer in the US and we are delighted to be involved with this refurbishment project.
“ABB is committed to the development of renewable energy resources and helping to meet rising remand for electricity with minimal environmental impact.”
