Patent ID: 8505299

Claim:
A system comprising: a steam turbine section having a first inlet port and a second inlet port for receiving inlet steam, wherein the first inlet port is located at a higher pressure location on the steam turbine than the second inlet port; a first conduit and a second conduit operably connected to a first valve and a second valve, respectively, the first conduit and the second conduit for providing the inlet steam to the first inlet port and the second inlet port, respectively; and an electro-mechanical control system operably connected to the first valve and the second valve for controlling an amount of inlet steam admitted to each of the first inlet port and the second inlet port based upon a load demand on the steam turbine and an admission pressure of the inlet steam, wherein the electro-mechanical control system is configured to at least partially open the second valve in response to a decrease in the load demand on the steam turbine and at least partially close the first valve in response to the decrease in the load demand on the steam turbine.