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Siemens, SGT 400, 2015, 12.9 MW, 60 Hz, Gas Fuel

Description

  1. Overview
    1. Gas turbine, Siemens type SGT 400, year of manufacture 2015.
    2. Condition: new, never used.
    3. Quantity: 3 units.
    4. Electrical power: 12.9 MW each.
    5. Fuel: gas.
    6. Frequency: 60 Hz.
    7. The SGT 400 combines very high efficiency (nominal 35%) with excellent emissions performance in a rugged industrial design.
    8. This makes it the ideal choice for a wide variety of power generation applications.
    9. The Siemens twin-shaft industrial gas turbine SGT-400 features a compact gas generator and a two-stage power turbine, incorporating the latest aerodynamic and combustion technologies.
  2. Equipment Description and Scope
    1. The gas turbines are designed to operate on natural gas.
    2. The offered equipment contains the complete combined cycle equipment with all auxiliaries.
    3. The main equipment of the plant consists of the components: gas turbine, Siemens type SGT 400; air cooled generator type Siemens; plant auxiliary equipment; plant electrical and control equipment.
  3. Performance Data (For Information Only)
    1. Design data and nominal performance @ ISO conditions (100% load): gas turbine output (MW) 12.9; GT efficiency (%) 34.8; GT efficiency (KJ/KWH) 10,355.
    2. Details of performance depend on local boundary and ambient conditions (e.g. ambient temperature, site level, etc.) of the new site and have to be defined together with the new operator and given data to be adjusted accordingly.
  4. Operation Data
    1. Compressor pressure ratio: 16.8: 1.
    2. Exhaust gas flow (kg/s): 39.4.
    3. Exhaust temperature (°C): 555.
    4. Frequency (Hz): 50.
    5. Generator voltage (Hz): 50.
    6. Generator voltage (kV): 6.
    7. NOx emission (ppm) < 15.
  5. Driven Unit
    1. Generator: AC generator, 11 kV, 3 phase, 4 pole, 50 Hz, 0.8 power factor, salient pole brushless type.
    2. Filter ventilated.
    3. Class ‘F’ insulation with class ‘B’ total temperature rise.
    4. Generator enclosure rating – IP54.
    5. Generator bearing temperature instrumentation.
    6. Generator bearing proximity X-Y vibration probes.
    7. Lubricating oil piping – gas turbine to driven unit.
  6. Gas Turbine Engine
    1. Core engine – twin shaft design – nominal rating 12.9 MWe.
    2. Gas generator: air inlet casing; compressor rotor; compressor stator with variable guide vanes; centre casing; combustion system – dry low emissions (DLE); compressor turbine rotor; compressor turbine stator.
    3. Power turbine: hot gas interduct; power turbine rotor; power turbine stator; output shaft drive; exhaust outlet casing.
    4. Engine bearing temperature instrumentation.
    5. Engine vibration detector.
  7. Under Base
    1. Fabricated carbon steel construction, arranged for multi-point mounting.
    2. Mounting assemblies for the gas turbine core, auxiliary gearbox, auxiliaries, main gearbox, and driven unit (separate under base).
    3. Integral lubricating oil tank – carbon steel.
  8. Start System
    1. Hydraulic motor and pump – AC electric motor driven.
  9. Gears, Couplings, and Guards
    1. Main speed reducing gearbox – epi-cyclic type, output shaft speed 1500 rpm.
    2. Auxiliary gearbox incorporating drives for start system and lubricating oil pump.
    3. Driven unit coupling, flexible element dry type.
    4. Coupling guard – carbon steel.
  10. Lubricating Oil System
    1. Gas turbine lubrication oil system utilizes mineral oil.
    2. Lubricating oil system serving the turbine, gearbox and driven unit.
    3. Lubricating oil pump main – turbine gearbox driven.
    4. Lubricating oil pump auxiliary – AC motor driven.
    5. Lubricating oil pump emergency – DC motor driven.
    6. Lubricating oil filter - duplex - carbon steel body non-ASME.
    7. Lub oil module transmitters – Siemens standard smart type – aluminium.
    8. Lubricating oil tank immersion heaters.
    9. Lubricating oil system breather.
    10. Lubricating oil breather oil mist eliminator.
    11. Lubricating oil breather ducting – austenitic stainless steel.
  11. Lubricating Oil System Cooler
    1. Air blast simplex lubricating oil cooler – non API.
    2. Cooler fan – single 100% duty.
    3. Suitable for a non-hazardous area.
    4. Package roof mounted.
  12. Gas Fuel System
    1. Pilot fuel flow control system with actuator.
    2. Main fuel flow control system with actuator.
    3. Rapid-acting gas shut-off valves (2-off).
    4. Pressure transmitters – Siemens standard smart type – aluminum.
    5. Gas fuel system trace heating and insulation (if required).
    6. Gas fuel system thermocouple.
    7. Gas fuel block and vent valve assembly – off package.
  13. Acoustic Enclosure
    1. Painted carbon steel, fitted over gas turbine and auxiliaries.
    2. Doors for personnel access and maintenance.
    3. Integral lifting beam for maintenance.
    4. Internal lighting.
    5. Acoustic system transmitters – Siemens standard smart type – aluminum.
    6. Controls weather protection canopy – aluminum.
  14. Acoustic Enclosure Ventilation System
    1. Ventilation air inlet grille.
    2. Ventilation inlet and outlet dampers – galvanized carbon steel – instrument air operated.
    3. Ventilation fan – single – AC electric motor driven – zone 2.
    4. Ventilation air system – negative pressure.
    5. Ventilation air silencer – galvanized carbon steel.
    6. Ventilation air inlet and outlet ducting – galvanized carbon steel.
    7. Integral support for turbine enclosure ventilation system.
  15. Gas Detection System
    1. Gas detection equipment, comprising: gas detectors – vent outlet x 2.
  16. Fire Protection System
    1. Fire protection equipment, comprising: flame detectors IR x 3; heat detectors x 2; sounder / beacon unit; status indicator; manual alarm contact; fire extinguisher; twin shot CO2.
    2. Cylinders housed in an open rack.
    3. Extinguisher system distribution pipework and nozzles.
    4. Piping – cabinet to package.
  17. Combustion Air Inlet System
    1. Combustion air filter – static pad type – galvanized carbon steel.
    2. Combustion air filter weather hood.
    3. Combustion air silencer – galvanized and painted carbon steel.
    4. Combustion air inlet ducting – galvanized and painted carbon steel.
    5. Integral support for combustion air inlet system.
  18. Combustion Exhaust System
    1. Exhaust diffuser only – ferritic stainless steel – horizontal orientation.
    2. Thermal insulation and aluminum cladding – personnel protection only.
  19. Package Electrical Systems
    1. Motor control centre – off package, for Siemens supplied package motors.
    2. Batteries (not included in this budgetary tender).
  20. Package Auxiliaries
    1. Turbine compressor cleaning system for hot and cold wash - off-package reservoir.
    2. Auxiliary module drains tank.
    3. Transmitters – auxiliary module – Siemens standard smart type - aluminium.
    4. Instrument tagging – arrow tags - Siemens standard P&ID references.
    5. Package finish to Siemens onshore standard.
  21. Control System
    1. Package control system hardware.
    2. Unit control system – simplex, incorporating a Siemens Simatic PLC platform.
    3. Control and monitoring of the package systems.
    4. Control system located on-package.
    5. Climate control incorporated.
    6. Operator display language – English language.
    7. Turbine vibration displacement monitoring - Bentley Nevada 1701 system.
    8. Remote PC, VDU, keyboard and mouse.
    9. Generator control panel (safe area), package mounted, containing: automatic voltage regulator; synchronizing facility – automatic and manual with check synchronizer; generator metering equipment and electrical protection.
    10. Siemens turbomachinery applications – remote monitoring system – STA – RMS.
    11. Provision for data collection.