Both advanced ultra-supercritical steam turbine product families combine GE’s proven and fully modular philosophy with the results of more than a decade of material and design research on the 700 °C steam technology, which grants high availability and reliability.
GE’s extensive portfolio of modern last stages ranges from 27” to 50” and allows configuration of the STF-D1250 and STF-D2250 with exhaust areas between 9m2 and a staggering 72m2, all offering GE’s proven nub-and-sleeve damping system with superior damping behavior at any flow condition.
GE’s extensive know-how base and experience, combined with rigorously standardized engineering, design and manufacturing processes allow extensive customization for any application without compromising on quality, lead time, or operating reliability.
Two high-performance turbine platforms designed to take steam power generation to new efficiency levels in both 50 and 60 Hz grids without compromising on operational flexibility.
Specifications shown are for 50 Hz and 60 Hz.
|Main Steam||330 bar (4,786 psig)||330 bar (4,786 psig)|
|Main Steam / Reheat Steam Temperature||650 °C/670 °C (1,202 °F/1,238 °F)||620 °C / 630 °C / 630 °C (1,148 °F / 1,166 °F / 1,166 °F)|
|Output||400 – 1,200 MW||600 - 1,200 MW|
|Efficiency||≥ 54%||≥ 53%|
|Maximum Backpressure||≤ 700 mbar (20.7 in. Hg)||≤ 700 mbar (20.7 in. Hg)|
|Control Concept||Sliding pressure mode, Hybrid mode with or without overload valve||Sliding pressure mode, Hybrid mode with or without overload valve|