The Corps of Engineers’ Seattle District intends to award a sole source contract to ABB Power Generation Inc. to design, supply, and install 16 excitation systems for 525-MW Libby Dam in Montana and 2,457.3-MW Chief Joseph Dam in Washington.
The district announced its intent Feb. 6, saying the contractor is to remove existing static exciters, and design, manufacture, test, deliver, and install 16 Unitrol 6080 excitation systems.
ABB Power Generation of Littleton, Colo., is expected to provide excitation systems that include automatic voltage regulators, power system stabilizers, power potential transformers, and other ancillary equipment. Excitation equipment is to be of a type that is designed for field excitation and voltage regulation of hydroelectric generators with ratings of 10 megavolt-amperes or more.
Libby Dam is located on the Kootenai River in Montana. (HNN 2/25/08) Chief Joseph Dam is on the Columbia River in north central Washington. In 2007, the Corps awarded an $80 million contract to Alstom Hydro U.S. Inc. to manufacture replacement runners for 10 of 16 original units at Chief Joseph. (HNN 7/5/07)