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Siemens, SGT 400, 2017, 12.9 MW, 50Hz, 11 kV (New)

Siemens, SGT 400, 2017, 12.9 MW, 50Hz, 11 kV

Description

  1. Overview
    1. Condition: New
    2. Year: 2017
    3. This document contains detailed information on the supply of the following aspects: CX 400 gas turbine packaging, Centrax SCADA system, auxiliary transformer, MVSG (medium voltage switchgear), low voltage distribution panel, and 125VDC-40 A charger.
    4. The gas turbine package has been in operation for a cumulative duration of 5000 hours, including testing and commissioning during its initial installation in France. Presently, it is deployed, where it was already assembled and is of the 2017 model.
  2. Gas Turbine Generator Package
    1. Driven unit, generator.
    2. The driven unit features an AC generator with specifications including 11 kV, 3-phase, 50 Hz, 4-pole configuration, and a power factor of 0.8.
    3. Constructed with a salient-pole design, it employs brushless excitation and incorporates a permanent magnet generator (PMG) for the automatic voltage regulator (AVR) power supply.
    4. Equipped with filter ventilation and class 'F' insulation, it ensures a total temperature rise within class 'F' standards.
    5. Additionally, the generator includes instrumentation for monitoring bearing temperature and features lubricating oil piping connecting the gas turbine to the driven unit.
    6. The PMG is situated on the exciter base between the exciter and the non-drive end (NDE) bearing, enhancing operational efficiency.
    7. To maintain system stability, a neutral earthing resistor (NER) is installed on the skid frame.
    8. Automatic voltage regulation is facilitated by the Basler digital excitation control system (DECS-250N), a microprocessor-based device. Programmed with system parameters and regulation settings, it offers functions such as: automatic voltage regulation (AVR), manual or field current regulation (FCR), power factor (PF) adjustment, and reactive power (VAR) control.
  3. Gas Turbine Package
    1. Gas turbine engine.
    2. Core engine – twin shaft design.
    3. Combustion system – dry low emissions (DLE).
    4. Engine arranged for hot end drive.
    5. Engine bearing temperature instrumentation.
    6. Start system.
    7. Hydraulic motor and pump - AC electric motor driven.
    8. Gears, couplings and guards.
    9. Main speed-reducing gearbox – epicyclic type, output shaft speed 1500 rpm.
    10. Gearbox seismic vibration instrumentation.
    11. Auxiliary gearbox incorporating drives for start system and lubricating oil pump.
    12. Drive coupling – high-speed - flexible element dry type – turbine to gearbox drive coupling - low speed - flexible element dry type - gearbox to AC generator.
    13. Coupling guard - high speed (carbon steel) - turbine to gearbox.
    14. Coupling guard - low speed (carbon steel) - gearbox to driven unit.
  4. Lubricating Oil System
    1. Integral mineral oil lubricating system serving the gas turbine, gearbox, and driven unit.
    2. Lubricating oil pump main - gas turbine gearbox driven.
    3. Lubricating oil pump auxiliary - AC motor driven.
    4. Lubricating oil pump emergency - DC motor driven.
    5. Lubricating oil system filter.
    6. Duplex filter arrangement.
    7. Continuous flow transfer valves.
    8. Temperature and smart type pressure and level transmitters - aluminum bodies.
    9. Lubricating oil tank immersion heater.
    10. Lubricating oil breather oil mist eliminator.
    11. Lubricating oil system cooler.
    12. Air blast simplex lubricating oil cooler.
    13. Cooler fan – single (100% duty).
    14. Suitable for a non-hazardous area.
  5. Gas Fuel System
    1. Pilot fuel flow control system with actuator and integrated pressure transmitters.
    2. Main fuel flow control system with actuator and integrated pressure transmitters.
    3. Rapid-acting gas shut-off valves (2-off).
    4. Temperature transmitter - aluminum body.
    5. Gas fuel block and vent valve assembly.
    6. Off-skid gas fuel unit.
  6. Acoustic Enclosure
    1. Acoustic enclosure - painted carbon steel, fitted over gas turbine, gearbox and auxiliaries.
    2. Doors for personnel access and maintenance 85 dB(A).
    3. Integral lifting beam for maintenance.
    4. Internal lighting.
    5. Acoustic system transmitters - Siemens standard smart type – aluminum.
  7. Acoustic Enclosure Ventilation System
    1. Ventilation air inlet filter pad type 304L stainless steel.
    2. Ventilation inlet and outlet dampers – 304L stainless steel – air operated.
    3. Ventilation fan – single – AC electric motor driven.
    4. Ventilation air system – negative pressure.
    5. Ventilation air silencer – 304L stainless steel.
    6. Ventilation air inlet and outlet ducting – 304L stainless steel.
  8. Gas Detection System
    1. 2 - I.R. point gas detectors (vent outlet).
  9. Fire Protection System
    1. 3 - I.R. multi-spectrum flame detectors.
    2. 2 - heat detectors.
    3. Single sounder/beacon (end of package).
    4. 1 - beacon (inside package).
    5. Status indicator (end of package).
    6. 1 - MAC (manual alarm contact).
  10. Fire Extinguishing
    1. Single shot CO2 fire protection system – in accordance with NFPA12.
    2. Cylinders housed in a weatherproof cabinet.
    3. Extinguishing system distribution pipework and nozzles.
  11. Combustion Air Inlet System
    1. Combustion air filter – simple static element.
    2. Combustion air filter - weather hood.
    3. Combustion air filter – mist eliminator.
    4. Combustion air filter – EPA filter stage.
    5. Combustion air silencer.
    6. Combustion air inlet ducting.
  12. Combustion Exhaust System
    1. Exhaust diffuser – ferritic stainless steel – horizontal orientation.
    2. Exhaust silencer – ferritic stainless steel hot section.
    3. Thermal insulation and aluminum cladding – personnel protection only.
  13. Package Electrical Systems
    1. Control panel.
    2. Designed to provide environmental protection for the CX 400 package control panels and its operators. Fully equipped with lighting, power and environmental controls consisting of: 400V AC – package motors and heaters supply, internal and external lighting, and industrial 230V 50Hz outlet.
    3. The combined control panel consists of a battery charger, UPS, unit control panel for turbine and generator control and monitoring and motor control center.
    4. Synchronizing facility control with two breakers – automatic and manual with check synchronizer.
    5. Batteries sized to ensure a safe rundown of the turbine and driven unit in an emergency.
  14. Drawings and Documentation
    1. Standard set of certified information and approval drawings.
    2. Operator manual – hard copy.
    3. Piping and instrumentation (P&ID) diagram - soft copy.
    4. Electrical wiring diagrams – soft copy.
    5. Motor control centre drawings – soft copy.
    6. Interconnection cable list – soft copy.
    7. Site layout and general arrangement – soft copy.
    8. Foundation drawings – soft copy.