Abstract :
Radial arms of the upper bearing and thrustbearing support for an 82,500-kva 100-per cent power factor 180-rpm suspended-type vertical synchronous generator for Hoover Dam are being machined on a 40-foot boring mill in the shop of the Allis-Chalmers Manufacturing Company, Milwaukee, Wis. The generator is one of two to be driven by 115,000-horsepower 480-foot head hydraulic turbines. When installed these will be the largest complete hydroelectric units ever built by one company. The two turbines will be duplicates of seven previous units built by Allis-Chalmers for this same installation, except that the spiral casing sections are of welded plate steel construction instead of cast steel as was used in the original units.
