SIEMENS Gas Turbine SGT 800: Scope of Supply and Additional Notes

General Information

The SIEMENS SGT 800 Gas Turbine Generator Set is a 45.3 MW unit with an integral Local Equipment Room (LER). The unit(s) to be supplied are unused, with zero running hours, and have never been installed.

Gas Turbine Package

Original year of assembly: 2022-2023
Includes SGT 800 Gas Turbine Core Engine
Original assembly location: Europe
Never installed

AC Generator

Original assembly location: SIEMENS Electrical Machines
Original year of assembly: 2022-23
Package and core engine serial numbers will be confirmed upon placement of order.
Supporting documentation is available for review at any time with prior notice.

Scope of Supply Details

Driven Unit

AC Generator
11 kV
3 phase
50/60 Hz
4 pole
0.8 power factor
Cylindrical pole brushless type
Filter ventilated
Class F insulation with class F total temperature rise
Generator bearing temperature instrumentation
Lubricating oil piping from gas turbine to driven unit

Gas Turbine Engine

SGT 800 Gas turbine engine – ISO Rating 45,3 MWe – two-stage uncooled variable free power turbine, offering nominal shaft speed up-to 7,700 rpm.

Components:

Gas generator
Air inlet casing
Compressor rotor
Compressor stator with variable Guide Vanes (VGV)
Centre casing
Combustion system – Dry Low Emissions (DLE) for dual fuels
Compressor turbine rotor
Compressor turbine stator
Power turbine
Hot gas interdict
Power Turbine rotor
Power turbine stator
Output shaft drive
Exhaust outlet casing
Engine arranged for hot end drive
Engine bearing temperature and vibration instrumentation

Underbase

Fabricated carbon steel construction, arranged for multi-point mounting.
Mounting assemblies for the gas turbine core, auxiliary gearbox, auxiliaries, and main gearbox.
Separate underbase for the driven unit.
Integral lubrication oil tank – carbon steel.

Quantity & Fuel System

Quantity: Several units of SGT 800 generator packages available, ready for shipment depending on site-specific requirements.
Gas and Liquid fuel system included.
DLE combustion system.

Start System

Hydraulic motor and pump – AC electric motor driven.

Gears, Couplings and Guards

Gearbox seismic vibration instrumentation.
Auxiliary gearbox incorporating drives for the start system and lubricating oil pump.
Drive coupling – high speed – flexible element dry type – turbine to gearbox.
Drive coupling – low speed – flexible element dry type – gearbox to AC generator.
Coupling guard – high speed – (carbon steel) – turbine to gearbox.
Coupling guard – low speed – (carbon steel) – gearbox to driven unit.

Lubricating Oil System

Integral mineral oil lubricating system serving the gas turbine, gearbox, and driven unit.
Lubricating oil pump (main) – gas turbine gearbox driven.
Lubricating oil pump (auxiliary) – AC motor driven.
Lubricating oil pump (emergency) – DC motor driven.
Lubricating oil system filter: Duplex filter arrangement, continuous flow transfer valves, conforms to API 614.
Filter body – carbon steel.
Differential pressure indicator.
Temperature and Smart type pressure & level transmitters – aluminum bodies.
Lubricating oil tank immersion heater.
Lubricating oil system breather with oil mist eliminator.
Lubricating oil breather ducting – austenitic stainless steel.
Lubricating oil system cooler: Airblast simplex lubricating oil cooler, package roof mounted, with a single cooler fan (100% duty). Suitable for a non-hazardous area.
Lubricating oil cooler piping supply and return – austenitic stainless steel.

Gas Fuel System

Pilot fuel flow control system with actuator and integrated pressure transmitters.
Main fuel flow control system with actuator and integrated pressure transmitters.
Rapid acting gas shut-off valves (2-off).
Temperature transmitter – aluminum body.
Gas fuel block and vent valve assembly – off package.

Acoustic Enclosure

Painted carbon steel, fitted over gas turbine, gearbox, and auxiliaries.
Doors for personal access and maintenance.
Noise level: 85 dB(A).
Integral lifting beam for maintenance.
Integral lightning protection.
Acoustic system transmitters – Siemens standard smart type – aluminum.
Excluded: ground level enclosure access platforms and steps.

Acoustic Enclosure Ventilation System

Ventilation air inlet filter pad type.
Enclosure ventilation inlet and outlet dampers – air operated.
Ventilation fan – single – AC electric driven – Zone 2.
Ventilation air system – negative pressure.
Ventilation air silencer.
Ventilation air inlet and outlet ducting.
Integral support for turbine enclosure ventilation system.

Gas Detection System

Gas detection equipment comprising:
2 x I.R. point gas detectors (vent outlet).

Fire Protection System

Fire protection system comprising:
3 x I.R. multi-spectrum flame detectors.
2 x Heat detectors.
Single sounder/beacon (end of package).
1 x Beacon (inside package).
Status indicator (end of package).
1 x MAC (Manual Alarm Contact).

Fire Extinguishing

Fire shot CO2 fire protection system – in accordance with NFPA 12.
Cylinders housed in a weatherproof cabinet.
Extinguisher system distribution pipework and nozzles.
Piping from cabinet to package.

Combustion Air Inlet System

Combustion air filter – simple static element – painted carbon steel.
Combustion air filter - weather hood.
Combustion air filter - mist eliminator.
Combustion air filter – EPA filter stage.
Combustion air silencer – painted carbon steel.
Combustion air inlet ducting – painted carbon steel.
Integral support for combustion air inlet system.
Maintenance access platform and ladder – combustion air filter.

Combustion Exhaust System

Exhaust diffuser - ferritic stainless steel - horizontal orientation.
Exhaust silencer – ferritic stainless steel hot section – coated carbon steel outer casing.
Exhaust stack – ferritic stainless steel – floor standing vertical orientation – 15 m height (As per SIEMENS Energy standard design).
Thermal insulation and aluminum cladding – personnel protection only.

Package Electrical Systems

Integral Local Electrical Room (LER) designed to provide environmental protection for the SGT-800 package control panels and its operators.

Equipment:

Lighting, power, and environmental controls.
400 V AC – Package motors and heaters supply.
230V 50Hz distribution board.
Internal and external lighting.
Industrial 230 V 50 Hz outlet.
Air conditioning/heat pump unit capable of maintaining control room at 20°C in all ambient conditions.
Baseplate designed to support the control panel shelter and internal tread plates for single point lift of the driver package.
Single control panel cubicle with support frame.
Combined control panel: battery charger, unit control panel for turbine and generator control/monitoring, and motor control center.
Batteries – VRLA type, sized for safe run-down of turbine and driven unit in emergency.

Package Auxiliaries

Turbine compressor – mobile cleaning system – 316 stainless steel tank (on and off-line wash).
Drain tanks on package.
Auxiliary module pressure & level transmitters – Smart type – aluminum bodies.
Instrument tagging – arrow tags – SIEMENS standard P&ID references.
Package finish according to SIEMENS onshore standard.

Control System

Package Control System Hardware

Control system mounted within integral LER.
Unit Control System section – simplex, incorporating a SIEMENS SIMATIC PLC platform.
Control and monitoring of package systems.
Standard start-stop and load control functions – on-package control panel.
HMI PC panel mounted.
Operators display language – English.
Machinery vibration monitoring.
Ethernet TCP/IP communications data link to DCS.

Generator Control Panel

Automatic voltage regulator.
Synchronizing facility – automatic & manual with check synchronizer.
Generator metering equipment and electrical protection.

SIEMENS Turbomachinery Applications – Remote Monitoring System (STA-RMSTM)

STA-RMS allows improved support for engine operators, required during warranty period and thereafter with Long Term Programs (LTP) service contracts. Uses SIEMENS common Remote Service Platform for secure communication via Virtual Private Network (VPN) through customer's internet service.

STA-RMS primary functions:

Automatic transfer of engine operation data to Remote Diagnostic Center for:
- Routine monitoring
- Predictive trending
- Anomaly detection
- Improved downtime prediction and scheduling
- Access to historic data
- Fleet and unit performance reports
Remote access to the Human Machine Interface allowing:
- Direct operation by SIEMENS' support personnel.
- Software updates during fault rectification helpdesk call.
- Faster troubleshooting and support.

Testing

Testing Gas Turbine

Gas turbine core engine test – SE standard – the core has already been tested. Test data available.

Driven Unit Test

Manufacturer's works acceptance test data of AC Generator. Pre-tested.

Installation and Maintenance Equipment

Roll-off equipment – Gas turbine power turbine.
Roll-off trolley – Gas Turbine core engine removal.
Maintenance equipment.
Power turbine barring gear.
Core lifting equipment.
Semi-gantry crane.
Auxiliary gearbox support.
Installation tool kit comprising of a cabinet containing common hand tools.
Holding down fixings – GT and driven unit package.
Holding down fixings – off-package equipment.
Selection of paints for site repairs.

Drawings and Documentation

Standard set of certified information and an approval drawing in English language.
Existing drawings are to be reviewed and issued with relevant modifications or a project-specific cover.
Operator manual – English language – CD only.
Maintenance manual – English language – CD only.
Driven unit manual – English language – CD only.

Packing and Delivery

Packing and preservation to suit destination and transport method.
Delivery terms: Delivered FCA Europe in accordance with ICC INCOTERMS 2020 edition.

Spares

Commissioning equipment and tools.
Commissioning spares.

Quality Assurance

Contract QA Programmed.
Material Record Book (MRB) – quality assurance and as-built records – English language.

Subjects to prior sale – errors and omissions excepted.

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