Patent ID: 8888444

Claim:
A steam seal system comprising: a low pressure steam turbine positioned on a shaft; an intermediate pressure steam turbine positioned on the shaft; a high pressure steam turbine positioned on the shaft; a pair of end packings surrounding the shaft, each of the pair of end packings located proximate an axial end of the low pressure steam turbine along the shaft; and a pair of extraction conduits fluidly connected to the low pressure steam turbine and the shaft, the pair of extraction conduits connected to the shaft at a location axially outward of the pair of end packings and the low pressure steam turbine, wherein the pair of extraction conduits provide a flow of only low pressure steam extracted from the low pressure steam turbine to the pair of end packings, wherein the pair of extraction conduits are fluidly isolated from seal systems for the intermediate pressure steam turbine and the high pressure steam turbine.