Blenheim Gilboa Life Extension and Modernization

Blenheim Gilboa Life Extension and Modernization

Gracon disassembled, refurbished, and reassembled four 290 MW pump turbine generators. Work included replacing the runners, wicket gates, and the lower seal rings, which required cutting the draft tube, installing new structural components, re-contouring the stay vanes, and performing final machining of all horizontal surfaces. Gracon also replaced the four 102” spherical valves, installed four new digital governors, and refurbished the starting motor liquid rheostats and controls. All work was completed under extremely short outage windows.

Category
Hydropower
Start Date

December, 2005

Completed

June, 2010

Owner

New York Power Authority

Location

Gilboa, New York