Fuji Electric’s large steam turbines are offered 3 cylinder and 4 cylinder configurations. These condensing steam turbines are optimized for large-scale power plants with coal fired and combined cycle power plants.
Combination of proven components: HP+IP+LP or HP/IP+LP
Turbine type: Reheat Condensing
Exhaust direction: Down or Side
Speed: 3,000 and 3600 rpm
Superiority in operation
- Blade configuration matching with operation
- Full-arc admission system provides higher efficiency for entire operation range for sliding pressure operation plant.
- Nozzle cut-off system provides higher efficiency at low-loads for constant pressure operation plant.
- High turbine efficiency
- High efficiency reaction blades with integral shroud as well as twisted and/or 3DS blades.
- Advanced high-efficiency low-pressure (LP) blades with reliable free-standing design.
- Simple and large flexibility operation
- Automatic operation by means of digital governor through start-up, full load, shut down and on-load valve test.
- Weekly start and stop or daily start and stop operation
- Large allowable load change rate and cyclic load change
- Large allowable frequency range at -5 to+3%of rated speed for continuous operation.
High-reliability and long life
- Safe and high-reliability design
- Double shell construction in high-pressure (HP) and intermediate-pressure (IP) turbine reduces thermal stress during start-up and large-load change.
- Triple shell construction in low-pressure (LP) turbine minimizes thermal deformation during operation also effect during start-up and large-load change.
- Drum type rotor provides high-stability against vibrations.
- Bearing pedestals separated from the casing minimize influence of casing deformation on shaft vibration.
- Single-point support bearings provide high-stability against uneven subsiding of foundations.
- Reaction blades with integral shroud provide high-reliability against steam excitation force.
- Free-standing LP blades tuned individually avoid resonance and group vibration.
Long life design
- Full-arc admission control of inlet steams with high-temperature avoids thermal stress and deformation.
- Thermal stress evaluation system supervises turbine life consumption during start-up period.
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