Corps to test new 52-MW turbine-generator at Missouri’s Stockton Dam

The U.S. Army Corps of Engineers is preparing for testing and operation of a new 52-MW hydropower turbine replacing the original 45.2-MW unit at Stockton Dam hydroelectric project in Missouri.

The Corps’ Kansas City District said work is under way to prepare for testing and operation expected to begin within days. It said testing, expected to begin about Sept. 29, is to be marked by increased water releases from Stockton into the Sac River.

Voith Hydro received a $30.8 million contract in 2010 to replace the project’s sole 45.2-MW Kaplan turbine that was commissioned in 1973. The contract included work to replace the runner, rewind the generator stator winding, upgrade the hydraulic governor with a digital governor and replace the existing excitation system with a digital excitation system.

The original unit sustained runner blade failure in 2009, attributed to rough operation, prompting the Corps to suspect the original unit had not been designed for that particular facility.

The Corps took bids in December to refurbish a steel bulkhead at Stockton.

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