siemens.com/gasturbines
Reliable and powerful –
economical, safe-investment packages
SGT6-PAC 5000F / SCC6-PAC 5000F
SGT6-PAC 5000F packages:
flexible answers to drive your business forward
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.
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You will 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 have 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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Flexibility
you can rely on
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.
In addition to the gas turbine, you can also rely on
the performance of all the other market tested, topquality components in the SGT6-PAC 5000F package.
The SGen6-1000A generator and SST6-5000 steam
­turbine work p
­ erfectly together with the gas turbine.
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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.
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 SCC6-PAC 5000F
for simple cycle operation
for combined cycle operation
SGT6-5000F
SGen6-1000A
2 x SGT6-5000F
3 x SGen6-1000A
SST6-5000
Presentation is exemplary.
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
­inter­faces to the overall power plant
• Higher flexibility to fulfill both customerand 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
Scope of supply for SCC6-PAC 5000F
2 x 1 MS for combined cycle applications
• 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
• 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 a
­ uxiliaries
• 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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The SGT6-5000F:
world class reliability – truly multitalented
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 its various packages.
We are consistently working to make it even better,
which is why the SGT6-5000F is one of the best in class.
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Key
1Generator coupling
2Variable guide vanes
3Compressor rotating blades
4Fuel nozzles
5Combustors
6Combustor transition
7Turbine rotating blades
8Turbine discs
9Turbine casing
Its success proves us right
Since its market launch in 1993, the SGT6-5000F has
demonstrated world class reliability. An operating fleet
of 320 turbines with cumulative fired hours exceeding
ten 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 com­­bined 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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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 a
­ bsolute top ­priority, we can rapidly increase
power output by an additional ten percent with Shaping
PowerTM – this provides operating flexibility to respond
to changing grid demands without impacting part life.
And to provide even more flexibility the SGT6-5000F with
­Shaping Power TM can also operate in “max efficiency”
mode with reduced fuel consumption.
The SGT6-5000F achieves short and c­ ost efficient start-up
times thanks to the fast start option. You can produce
power for the grid in five minutes and generate 150 MW
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 t­ urbine 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 start-up and shutdown costs. You are therefore
able to respond more quickly to changing grid demands.
You can always rely on the SGT6-5000F for consistent
­performance with low emissions and high flexibility
in operation.
Environmental friendliness that allows you
to set benchmarks
With nine ppm NOx without water ­injection and less than
four ppm CO, the SGT6-5000F boasts the lowest emission
values today. We achieve this through the Ultra Low NOx
(ULN) ­combustion ­system.
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SGT6-5000F – your benefits at a glance
Operating flexibility:
Cost efficiency:
• Fuel flexibility – natural gas with varying Wobbe index, ­
distillate oils, and syngas
• Fuel changeover without shutting down
• Rapid start-up and shutdown to quickly r­ espond to grid
demands to equalize n
­ etwork fluctuations
• Fast, cost efficient start-up (five minutes to full speed
no load from turning gear, and 30 MW/min loading rates)
• Optimal fuel utilization due to high ­efficiency
• High power output (rated power output of up to 242 MW)
Best-in-class environmental performance:
• Low emission gas turbines, single digit NOx and
CO operation, high efficiency ­levels
• Low emissions even in part load operation
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 o
­ peration, such as
­remote online ­diagnostics
• More than 320 engines and ten million o
­ perating hours,
with more than 171,000 hours on the lead unit
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The SST6-5000:
full steam ahead for your project
About 75 machines under contract, and about 16,500
installed MW. These figures speak for themselves –
and for our extensive experience. We have developed the
­SST6-5000 especially for operation in combined cycle
power plants and coal fired steam power plants.
Customized designs you can count on
The SST6-5000 c­ ombines short start-up times with
highest efficiency and world class operating reliability.
It consists of a combined high-pressure/medium-­pressure
section and a double-flow intermediate-pressure section
available in two variants: 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 modular turbine
design minimizes assembly and commissioning costs as
well as technical and commercial project risks. Due to the
customized design of the blade path, the SST6-5000 can
offer you a range of power outputs from 120 to 700 MW
depending on application and grid frequency. Our optimized condensers complete the turbo set scope of supply.
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SST6-5000 –
your benefits at a glance
• Maximized energy efficiency: short start-up times, high
component efficiency, ­advanced blading technology,
3DV™ profiles, variable ­reaction type blading
• Compact and cost-effective plant layout: small footprint,
single bearing between t­ urbine modules
• High versatility and reliability: proven designs for single
and multi shaft combined c­ ycle configurations
• Short project lead times: s­ tandardized auxiliary ­modules
and short delivery, i­nstallation, and commissioning times
• Reduced maintenance costs and high availability:
ten-year major inspection intervals
The SGen6-1000A:
the reliable power package
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 operation throughout the
world.
Reliable peak performance
With a world class efficiency, the ­SGen6-1000A ranks
among the best in class, and it is 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 safety
related 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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Auxiliaries – the ideal equipment
to round out the package
We pay attention to the details. We not only offer
you the core c­ omponents 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 manu­factured 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 selfcleaning (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.
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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.
During start-up, 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 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.
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.
Compressor water wash skid
The compressor water wash skid is provided for online
and offline ­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.
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.
Enclosures
The gas turbine is housed in an enclosure with easy
disassemble/assemble walls for quick engine access.
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
project specific needs.
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The SGT6-PAC 5000F packages on site:
tailor-made success, satisfied customers
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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References all over the world: selected
SGT6-PAC 5000F package projects in brief
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*
* Net values, corrected to ISO conditions
Genuine top performance:
Elk River Plant
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 p
­ rovided 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 start-up time,
the SGT6-5000F can ­com­pensate for power shortfalls in
an ex­tremely 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 NOx emissions: less than nine ppm dry combustion
of natural gas
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Conclusive figures
SGT6-5000F
SGen6-1000A
Compressor
Frequency
60 Hz
Type
Axial flow
Power factor
0.8 to 0.9
Number of stages
13
Speed
3,600 rpm
Rotor speed
3,600 rpm
Terminal voltage
13.8 kV to 18 kV
Inlet guide vanes
Variable
Efficiency
Up to 98.8 %
Combustion system
Apparent power
165 MVA to 310 MVA
Combustors
Coolant
Air, OAC (Open Air Cooling) or TEWAC
(Totally Enclosed Water-to-Air Cooling)
Design
In accordance with IEC and ANSI standards
Thermal classification
Class F insulation system
Type of enclosure
Suitable for outdoor installation
Excitation
Static or brushless
Transport dimensions
Suitable for rail transport in most countries
Type
Dry low NOx
Configuration
Can-annular
Number
16
Fuel
Gas fuel only
Gas fuel and liquid (dual fuel option)
Syngas (option)
Turbine
Number of stages
4
Drive
Cold end, direct coupled
Starting system
SST6-5000
Turbine series
Combined high-pressure/
inter­mediate-pressure
reverse-flow (HI) modules and low-pressure (L) modules for 60 Hz
Starting system
SFC (Static Frequency Converter)
Starting time to base load*
30 min (base)
Turning gear speed
120 rpm
Recommended inspection intervals
Plant type
Combined cycle power plant
Coal-fired steam power plant
NOTE: flexible service intervals are available with an
LTSA (Long Term Service Agreement)
Output range
120 MW to 500 MW for combined cycle
applications
Inspection type – gas fuel
Equivalent base hours Equivalent starts
Combustor
12,500
900
Hot gas path
25,000
900
50,000
1,800
120 to 700 MW for steam power plants
Main steam
(Typical parameters)
Temperature:
Pressure:
up to 600 °C / 1,112 °F
up to 177 bar / 2,566 psi
Major overhaul
Reheat steam
(Typical parameters)
Temperature:
up to 600 °C / 1,112 °F
*A fast start option is available to provide 150 MW in 10 minutes
Exhaust areas
60 Hz: 4.4 m² to 8.7 m²;
26 inches to 38 inches*
* Last blade profile length
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SGT6-PAC 5000F
ISO conditions, net values
Configuration flexibility to meet power plant-specific needs
Power output [MW]
242
Efficiency[%]
39
Heat rate
[kJ/kWh]
9,231
Heat rate
[Btu/kWh]
8,749
Pressure ratio
18.9
Exhaust temperature
[°C]
~ 593
Exhaust temperature
[°F]
~ 1,100
Exhaust mass flow
[kg/s]
571
Exhaust mass flow
[lb/s]
1,260
SGT6-PAC 5000F MS 2 x 1
ISO conditions, net values
Configuration flexibility to meet power plant-specific needs
Power output
[MW]
720
Efficiency[%]
58
Heat rate
[kJ/kWh]
6,205
Heat rate
[Btu/kWh]
5,882
[°C]
~ 593
[°F]
~ 1,100
Exhaust temperature
Exhaust temperature
Exhaust mass flow
[kg/s]
571
Exhaust mass flow
[lb/s]
1,260
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Published by and copyright © 2015:
Siemens AG
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Siemens Energy, Inc.
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Orlando, FL 32826-2399, USA
For more information, please contact
our Customer Support Center.
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E-mail:support.energy@siemens.com
Power and Gas Division
Article No. E50001-W220-A112-V4-4A00 | Printed in Germany |
Dispo 34802 |
TH 214-150247 | WÜ | WS | 04150.5
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are the property of Siemens AG, its affiliates,
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Subject to change without prior notice.
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.