Design of 1000-MW Steam Turbine-Generator Unit for Ravenswood No 3

Consolidated Edison’s 1000-mw steam turbine-generator unit for Ravenswood No. 3 will operate on a 2400-psig, 1000/1000 F steam cycle. Arrangement is close-coupled 3600/1800-rpm, cross compound, with all five turbines double flow. Both generators are of fully supercharged, hydrogen-cooled design. At each end of the 3600-rpm shaft are direct-driven half-size boiler-feed pumps while the big units two gear-driven exciters are in tandem at the generator end of the 1800-rpm shaft. The three double-flow, low-pressure turbines use 40-in. exhaust spindle blades. This world-record unit incorporates design features to assure fast starting and loading, high reliability, and efficient performance.