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GE installs new steam turbine technology

6 May 2008 -- GE Energy said that it installed its new 26.8 inch last stage bucket (LSB) with axial entry dovetail at the Coal Creek Station in North Dakota.

The new GE 26.8-inch LSB was applied to the first of the two GE steam turbines at Coal Creek Station, which has a total capacity of more than 1,100 MW. The section replacement was completed in April 2008 with the unit re-entering commercial service in May 2008.

The low-pressure section of a steam turbine is responsible for delivering roughly 50 percent of the steam turbine output. GE's LSB is designed to increase the output and reliability of the low-pressure sections of steam turbines without increasing heat to the turbine or fuel to the boiler.



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