SGT6-PAC 5000F / SCC6-PAC 5000F

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Innovation for fossil power generation is our business. As a
technology leader, we are familiar with the global energy markets, and always have a ready answer with our future-oriented product portfolio in spite of constantly changing requirements. We combine maximum performance with minimum emissions, and we achieve high levels of energy efficiency with minimized operating costs and calculable investments. And by continously investing in research and development, we will ensure that this continues into the future as well.

You’ll profit from our experience
With the comprehensive Siemens packages for the hightech gas turbine SGT6-5000F for combined cycle or simple cycle applications, you will profit even before the plant is commissioned. Gas turbine, generator, steam turbine, and the corresponding auxiliary systems are combined into a perfectly functioning unit and individually matched to your specific project targets. In this way we can significantly reduce the engineering work required for coordinating interfaces and lower the risks entailed in the performance and delivery of EPCs. Individual components in our packages can also be combined with other manufacturers’ models with no additional effort.
This is how we’ve made the SGT6-PAC 5000F and its
individual components the first choice for challenging projects. Regardless of whether you need to compete in
OPEX- or CAPEX-driven markets or if you have to face the challenges in markets with a high share of renewables, our power plant components will ensure that you remain competitive.
In brief: in a dynamic energy market, the SGT6-PAC 5000F is the economical and flexible answer to your project.
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We have developed a variety of packages specifically for our proven and reliable SGT6-5000F gas turbine’s 60-Hz market. The SGT6-5000F itself is the core component of every package. And because we know that every project is different and poses its own individual requirements, we supply a variety of different turbine and package options.
Performance- or efficiency-oriented, for combined cycle
(SCC6-PAC 5000F) or simple cycle (SGT6-PAC 5000F) applications, or designed for IGCC application.
This enables you to get the full potential from all components and achieve maximum cost efficiency, whether in peak-, intermediate, or base-load duty.
The SGT6-5000F packages: Keeping the interfaces in mind
Forward-looking technologies for competitive power plant operation. With the SGT6-PAC 5000F and the
SCC6-PAC 5000F, you are right on track.
In addition to the gas turbine, you can also rely on the performance of all the other market-tested, top-quality components in the SGT6-PAC 5000F package.
The SGen6-1000A generator and SST6-5000 steam
turbine work perfectly together with the gas turbine.
One of the attractive features of our packages is their low lifecycle costs, thanks to the seamless coordination of the individual components. This plays an invaluable role in helping operators stay competitive.

SGT6-PAC 5000F for simple cycle operation
SGT6-5000F SGen6-1000A
SCC6-PAC 5000F for combined cycle operation
2 x SGT6-5000F 3 x SGen6-1000A
Presentation is exemplary.
SST6-5000
Additional applications are available, including MS 2 x 1 or MS 3 x 1 and MS 4 x 1, depending on specific requirements
SGT6-PAC 5000F and SCC6-PAC 5000F –
Your benefits at a glance
• Security of investment: as a result of the long-term availability of spare parts and service and maintenance expertise
• Minimized engineering and project
management costs thanks to accelerated
engineering: pre-engineered package
• Shorter lead times for construction
and commissioning: standardized package designs, predefined interfaces to the overall power plant, utilization of proven components
• Plant design freedom: small footprint of packaged components, predefined
inter faces to the overall power plant
• Higher flexibility to fulfill both customer- and site-specific requirements:
generator cooling options, dual fuel
option, air-intake system, exhaust-gas system, and noise abatement
Scope of supply for SGT6-PAC 5000F for simple cycle applications – typical installation
• SGT6-5000F (gas turbine)
• SGen6-1000A (electrical generator)
• Air intake system
• Exhaust gas system
• Start-up system
• Major auxiliary system
• Instrumentation and control
• Electrical systems
• Lubrication oil system
• Hydraulic oil system
• Turning gear
• Compressor water wash skid
• Piping packages
• Cooling systems
• Power control center
• Enclosures
• Fire protection
Scope of supply for SCC6-PAC 5000F
2 x 1 MS for combined cycle applications
• 2 x SGT6-PAC 5000F
(Scope of supply identical to simple cycle application for each SGT6-5000F)
The combined cycle application also features
• SST6-5000 (steam turbine) including
auxiliaries
• SGen6-1000A including auxiliaries
• Steam turbine electrical instrumentation and control
Optional equipment is available customized to your project, such as a dual-fuel combustion system, inlet heating system, and much more
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Continuous flexibility, high performance and reliability, high
efficiency, and superior environmental indicators are the requirements for electricity production today. Meeting these challenges is no problem for the SGT6-5000F and it’s various packages.
We are consistently working to make it even better, which is why the SGT6-5000F is one of the best in class.

Flexibility that enables you to react with maximum efficiency
The need for flexible power generation has increased
dramatically over the years. The SGT6-5000F is the right choice to meet those ever-changing energy demands.
The unique turbine design is always biased toward high efficiency values. But in applications where power has the absolute top priority, we can rapidly increase power output by an additional 10 percent with Shaping Power TM
– this provides operating flexibility to respond to changing grid demands without impacting part life.
in ten minutes from turning gear speed. While connected to the grid, the gas turbine can ramp at 30 MW/min – with no service penalty.The low-load turndown option
provides you with the flexibility to reduce load down to
> 40 percent of gas turbine base load while maintaining emissions compliance. This gives you the benefits of remaining cost-effectively connected to the grid with reduced fuel costs during off-peak hours, while also
avoiding startup and shutdown costs. You are therefore able to respond more quickly to changing grid demands.
And to provide even more flexibility the SGT6-5000F with
Shaping Power TM can also operate in “max efficiency” mode with reduced fuel consumption.
You can always rely on the SGT6-5000F for consistent
performance with low emissions and high flexibility in operation.
The SGT6-5000F achieves short and cost-efficient startup times thanks to the fast start option. You can produce power for the grid in five minutes and generate 150 MW
Environmental friendliness that allows you to set benchmarks
With 9 ppm NO x
without water injection and less than
4 ppm CO, the SGT6-5000F boasts the lowest emission values today. We achieve this through the Ultra Low NO x
(ULN) combustion system.
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SGT6-5000F – Your benefits at a glance
Operating flexibility:
• Fuel flexibility – natural gas with varying Wobbe index, distillate oils, and syngas
• Fuel changeover without shutting down
• Rapid startup and shutdown to quickly respond to grid demands to equalize network fluctuations
• Fast, cost-efficient startups (five minutes to full speed no load from turning gear, and 30 MW/min loading rates)
High availability and reliability:
• Short inspection times thanks to maintenance-friendly design.
For example, compressor blades can be easily removed and
replaced in the field, additionally there are special service
programs and support available during operation, such as
remote online diagnostics
• More than 245 engines and nine million operating hours, with more than 148,000 hours on the lead unit
Cost efficiency:
• Optimal fuel utilization due to high efficiency
• High power output (rated power output of up to 232 MW)
Best-in-class environmental performance:
• Low-emission gas turbines, single-digit NO x
and
CO operation, high efficiency levels
• Low emissions even in partial-load operation
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Key
1 Generator coupling
2 Variable guide vanes
3 Compressor rotating blades
4 Fuel nozzles
5 Combustors
6 Combustor transition
7 Turbine rotating blades
8 Turbine discs
9 Turbine casing
Its success proves us right
Since its market launch in 1993, the SGT6-5000F has demonstrated world-class reliability. An operating fleet of 245 turbines with cumulative fired hours exceeding nine million and a fleet reliability of consistently
99 percent speaks for itself. The SGT6-5000F’s world class reliability is achieved through proven technology, low F-class firing temperatures, and the use of conventionally cast alloys in the turbine. Despite its low firing
temperature, the SGT6-5000F packages deliver highlevel efficiency. However, the SGT6-5000F excels not only in worldwide service, but also with remarkable
performance parameters. Best of all, as the core package component, the SGT6-5000F also influences the equally exceptional performance of the packages in simple cycle as well as combined cycle applications.
Versatility you can count on
The SGT6-5000F is the basic component in numerous different concepts in the area of fossil electricity generation. In the 60-Hz market, it is the first choice for simple cycle and combined cycle operation with or without
integrated gasification com bined cycle (IGCC), combined heat and power (cogeneration), and repowering. The
13-stage high-efficiency compressor and four-stage
turbine are on one central tie bolt rotor with Hirth
serration. The SGT6-5000F is designed to use a wide range of different fuels. It runs on natural gas, low- or medium- calorific BTU gas, as well as on distillate oils – and there is no need to shut down the turbine when switching from gas to liquid fuel.
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Fifty-six machines under contract, and about 13,000 installed MW. These figures speak for themselves – and for our extensive experience. We’ve developed the
SST6-5000 especially for operation in combined cycle power plants and steam power plants for 60 Hz.
Customized designs you can count on
The SST6-5000 combines short startup times with high operating performance. It consists of a combined highpressure/medium- pressure section and a double-flow
low-pressure section available in two models: high level
(exhaust flow downwards) and low level (exhaust flow on one or two sides). Thanks to its modular design, the
SST6-5000 is as flexible as your project requires, and can be adapted to meet your project specific thermal cycle needs. The turbine has been designed to minimize assembly and commissioning costs and to reduce technical and commercial risks for the project. Due to the customized design of the blade path, the SST6-5000 can offer you a range of power outputs from 120 to 600 MW.
On request, we can provide a suitable condenser as well.
SST6-5000 –
Your benefits at a glance
• Maximized energy efficiency: short startup times, high component efficiency, advanced blading technology,
3DV™ profiles, variable reaction-type blading
• Compact and cost-effective plant layout: small footprint, single bearing between turbine modules
• High versatility and reliability: proven designs for single and multi shaft combined cycle configurations
• Short project lead times: standardized auxiliary modules and short delivery, installation, and commissioning times
• Reduced maintenance costs and high availability: ten-year major inspection intervals
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High power density in minimal space: The SGen6-1000A manages a power range up to 310 MVA. Its compact design makes our generator the first choice for gas,
combined cycle, combined heat and power, and steam power plants. With the SGen-1000A series, we offer you a technology with a proven track record, with over
100 machines successfully in service throughout the world.
Reliable peak performance
With a world-class efficiency, the SGen6-1000A ranks among the best in class, and it’s versatile, too. Depending on the project requirements, we can offer you a choice of TEWAC (Totally Enclosed Water-to-Air Cooling) or
OAC (Open Air Cooling) cooling systems. The air-cooled
SGen6-1000A eliminates the maintenance and safetyrelated costs associated with hydrogen cooling.
SGen6-1000A –
Your benefits at a glance
• High power output: world-class efficiency
• Low maintenance costs: reliable air-cooling system
• Low lifecycle costs: suitable for outdoor installation, small footprint, high efficiency
• Short project lead times: dimensions appropriate for rail transport in most countries, simplified installation
• High availability and reliability: design based on field-proven components
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We pay attention to the details. We not only offer you the core components for flexible and efficient packages, we also provide the auxiliaries necessary for economical and reliable operation. To minimize field work during assembly and maintenance, the auxiliary systems and associated piping are designed and manu factured to allow easy access and require fewer connections.
Air intake system
Ambient air is guided and filtered to the compressor inlet with an option for a self-cleaning (pulse) filter with automatic dust removal. Inlet air-conditioning options are available that include evaporative cooling and inlet chilling for increased output on hot days. Inlet heating options are available for extreme cold environments.
Exhaust gas system
Exhaust gas is guided from the gas turbine via the diffuser to the turbine plant’s stack or to a combined cycle plant’s heat-recovery steam generator (HRSG). A bypass stack option is available for combined cycle plants for switching between combined cycle mode and simple cycle mode during operation.
Electrical system
The electrical package contains equipment necessary for sequencing, control, and monitoring of the gas turbine and generator. This includes the gas turbine control system, motor control centers, generator protective relay panels, fire protection system, battery bank, battery charger, and dry-type transformers.
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Oil systems
The oil systems consist of a lube oil (LO) package and a hydraulic oil power unit (HPU). The LO package provides clean, filtered oil for lubricating and lifting the gas turbine and generator bearings, and provides lubrication for the turning gear. The LO skid consists of the lube oil reservoir,
LO pump, and lift-oil pumps and provides a support structure for the LO cooling system (fin-fan air or water cooled).
An all-weatherproof lube oil enclosure option is available for cold or dusty environments. The HPU provides mediumpressure hydraulic oil to operate the gas fuel-stage throttle valve, the inlet guide vane actuator, and the variable guide vane actuators.
to the speed needed to engage the SFC. The SFC accelerates the gas turbine to ignition speed, and after successful ignition the SFC will assist in accelerating the unit to rated speed.
Compressor-water wash skid
The compressor-water wash skid is provided for on-line and off-line compressor cleaning. It features an AC motordriven pump, piping, valves, strainer junction box, cabling, flowmeter, and detergent storage tank. Everything is assembled on a portable skid for greater flexibility.
Enclosures
The GT is housed in an enclosure with easy disassemble/ assemble walls for quick engine access.
Starting system
The starting system consists of an air cooled static frequency converter (SFC) and a turning gear system. The turning gear can be remotely and automatically operated.
The turning gear system rotates the rotor at 120 rpm
during shutdown to facilitate a uniform cooldown. During startup, the turning gear rotates the rotor to remove bow and facilitate a smooth start. The turning gear also provides the breakaway torque to accelerate the gas turbine
Fire protection
The fire protection system gives a visual indication of actuation at the local control panel. The fire suppressant system provides total protection of the turbine enclosure and the electrical control package.
There are many other options available to meet your projectspecific needs.
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The many different options available for customizing the
SGT6-PAC 5000F technology enable you to meet your customers’
specific requirements. On the following page, we can only offer a brief overview of the extensive range of possible applications of the
SGT6-PAC 5000F packages. Please get in touch with us if you would like to find out how you can use our packages profitably for your next project.
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Site: Posco
Country: South Korea
Customer: Posco Power
Plant type: CCPP MS 2x1
Commercial operation: 2011
Fuel: Natural gas
Power output: 633 MW*
Site: Kemper County
Country: U.S.
Customer: Mississippi Power Company
(a Southern Company)
Plant type: IGCC
Commercial operation: Planned for
2014
Fuel: Syngas / natural gas
Power output: 232 MW*
Site: Elk River
Country: U.S.
Customer: Great River Energy
Plant type: SCPP
Commercial operation: 2009
Fuel: Natural gas / distillate oil
Power output: 204 MW*
References all over the world:
Selected SGT6-PAC 5000F package projects in brief
* Net values, corrected to ISO conditions
Since July 2009, Great River Energy (GRE) in Minnesota
(U.S.) has placed its trust in our package technology.
GRE successfully operates a SGT6-PAC 5000F package tasked with managing peak loads at its Elk River simple cycle gas turbine power plant.
Great River Energy specifically opted for our SGT6-PAC
5000F package because a significant proportion of their power supply is provided by wind power. The gas turbine is deployed as a powerful and flexible peaker to handle power peaks regardless of weather conditions. This is an ideal area of application: because of its fast startup time, the SGT6-5000F can com pensate for power shortfalls in an ex tremely short time, and so it plays an invaluable role in providing a reliable and stable power supply.
Elk River Plant – impressive features
• SGT6-PAC 5000F generating equipment: SGT6-5000F
(204 MW), 275 MVA 60-Hz SGen6-1000A generator
• 38.0 percent simple cycle efficiency
• Outstanding quick-start capabilities:
150 MW ten minutes after the start button is pushed; full 204 MW ISO base-load output after just two to three more minutes
• Low NO x
emissions: less than nine ppm dry combustion of natural gas
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SGT6-5000F
Compressor
Type
Number of stages
Rotor speed
Inlet guide vanes
Combustion system
Combustors
Type
Configuration
Number
Fuel
Axial flow
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3,600 rpm
Variable
Dry low NO x
Can-annular
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Gas fuel only
Gas fuel and liquid (dual fuel option)
Syngas (option)
Turbine
Number of stages
Drive
4
Cold end, direct coupled
SST6-5000
Turbine series
Plant type
Output range
Main steam
(Typical parameters)
Reheat steam
(Typical parameters)
Exhaust areas
* Last blade profile length
Combined high-pressure/ inter mediate-pressure reverse-flow (HI) modules and low-pressure (L) modules for 60 Hz
Combined cycle
120 MW to 600 MW for combined cycle
applications
Temperature: up to 600 °C / 1,112 °F
Pressure: up to 177 bar / 2,566 psi
Temperature: up to 600 °C / 1,112 °F
60 Hz: 4.4 m² to 8.7 m²;
26 inches to 38 inches*
SGen6-1000A
Frequency
Power factor
Speed
Terminal voltage
Efficiency
Apparent power
Coolant
Design
Thermal classification
Type of enclosure
Excitation
Transport dimensions
60 Hz
0.8 to 0.9
3,600 rpm
13.8 kV to 18 kV
Up to 98.8 %
165 MVA to 310 MVA
Air, OAC (Open Air Cooling) or TEWAC
(Totally Enclosed Water-to-Air Cooling)
In accordance with IEC and ANSI standards
Class F insulation system
Suitable for outdoor installation
Static or brushless
Suitable for rail transport in most countries
Starting system
Starting system
Starting time to base load*
Turning gear speed
SFC (static frequency converter)
30 min (base)
120 rpm
Recommended inspection intervals
NOTE: Flexible service intervals are available with an LTSA
Inspection type – gas fuel
Combustor
Hot gas path
Major overhaul
Equivalent base hours Equivalent starts
12,500 900
25,000
50,000
900
1,800
*A fast-start option is available to provide 150 MW in 10 minutes
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SGT6-PAC 5000F
ISO conditions, net values
Configuration flexibility to meet power plant-specific needs
Power output [MW]
Efficiency [%]
Heat rate [kJ/kWh]
Heat rate
Pressure ratio
Exhaust temperature
Exhaust temperature
[Btu/kWh]
[°C]
[°F]
Exhaust mass flow
Exhaust mass flow
[kg/s]
[lb/s]
SGT6-PAC 5000F MS 2 x 1
204 – 232
38.0 – 38.8
9,463 – 9,278
8,970 – 8,794
17.2 – 18.9
~ 593
~ 1,100
507 – 551
1,118 – 1,215
ISO conditions, net values
Configuration flexibility to meet power plant-specific needs
Power output [MW]
Efficiency [%]
Heat rate
Heat rate
[kJ/kWh]
[Btu/kWh]
Exhaust temperature
Exhaust temperature
Exhaust mass flow
[°C]
[°F]
[kg/s]
Exhaust mass flow [lb/s]
633 – 687
57.2 – 57.5
6,293 – 6,261
5,965 – 5,934
~ 593
~ 1,100
507 – 551
1,118 – 1,215
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The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.