Williams Fork Dam Hydro Unit No. 1 Overhaul

Williams Fork Dam Hydro Unit No. 1 Overhaul

Williams Fork Dam Hydro Unit No. 1 Overhaul

Gracon was contracted by Denver Water to perform a complete overhaul of Unit #1 and fixed wheel penstock maintenance.

Services included:

  • Overhaul of a (3) MW vertical Leffel Turbine and electric machinery generator including brushless excitation, turbine parts refurbishment, and generator cleaning.
  • Replacement of the existing Unit No. 1 generator excitation system.

 

In addition, we performed:

  • Maintenance and testing of HPU1.
  • Replacement and modification of the Unit No. 1 draft tube dewatering system.
  • Refurbishment of the 70-inch by 93-inch penstock fixed wheel gate hydraulic cylinder.
  • Demolition and replacement of the existing penstock fixed wheel gate HPU.
  • Installation of second air compressor in the dam bubbler system and replacement of discharge line heat trace and insulation.