GAS TURBINE SGT-400 (SIEMENS)
Power generation: ISO 12.90 MW (e)/ 14.33 MW (e); Mechanical Drive: 13.40
MW/14.92 MW
Description
Siemens gas turbine SGT-400. High availability and security of supply
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The Siemens twin-shaft industrial gas turbine SGT-400 is a blend of 25 years of
experience and the latest combustion technologies.
Compact gas generator
Two-stage power turbine incorporating the latest aerodynamic and combustion
technologies
Turbine: Simple-cycle efficiency of up to nominally 35.4%
Power generation: Power output of 12.90 MW(e) / 14.33 MW(e)
Mechanical drive configuration: 13.40 MW / 14.92 MW
Gas turbine: Equipped with a Dry Low Emissions (DLE) combustion system,
achieving low NOX levels with gas and liquid fuels and a full dual-fuel capability
The twin-shaft configuration of the SGT-400 provides excellent speed and load
turndown flexibility:
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Uniquely simple design, employing a single gas generator rotor with twin
bearings and a two-stage compressor turbine
Free power turbine, two-stage overhung design
Rotors are contained in heavy duty casings which are horizontally and vertically
split, allowing full site maintenance
Gas turbine equipped with a Dry Low Emissions (DLE) combustion system,
achieving low NOx levels with gas and liquid fuels and a full dual-fuel capability
With a power turbine speed of 4,800 to 10,000 rpm, generator or pump drive
from the power turbine is usually via a speed-reducing gearbox
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Most compressor drive applications can be met without the need for a speedchanging gear
SGT-400; ideal choice for a wide variety of application
SGT-400: Ideal choice for a wide variety of applications.
Benefits:
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Proven design resulting in high availability and security of supply
Combines low emissions performance with a rugged industrial design
Dual-fuel Dry Low Emissions (DLE) combustion system, meeting the most
stringent legislation
Twin-shaft arrangement for both power generation and mechanical drive,
allowing commonality of parts in mixed duty installations
Competitive cost-to-power ratio
Compact size
Site maintainability
Alternate rapid core engine exchange option, minimizes downtime
Power generation
Siemens gas turbine SGT-400: High availability and security of supply
In power generation the SGT-400 gas turbine benefits from the high simple-cycle
efficiency (nominal up to 35.4 %) and its capability to operate on a wide range of gas
fuel calorific values. For industrial cogeneration, the high steam-raising capability of
more than 27 tones per hour contributes towards achieving overall plant efficiencies of
80 % or higher. In addition, the compact arrangement, on-site maintainability and
inherent reliability of the SGT-400 have made it an ideal gas turbine for the demanding
oil and gas industry. As a highly efficient unit the SGT-400 is used in the following fields
of application:
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Simple-cycle applications
Combined cycle applications
Combined heat and power (CHP)
Power generation for the oil and gas industry
Onshore power generator for oil field service, refineries etc.
Offshore platforms and FPSO vessels
Mechanical drive
The SGT-400 package for mechanical drive.
The SGT-400 gas turbine is a proven unit for driving compressors and pumps,
primarily for the oil and gas industry, both onshore and offshore. It offers cost-effective
power and outstanding reliability, efficiency and maintainability for all mechanical
drive applications. The turbine is designed to operate on a wide range of fuels. The
twin-shaft configuration provides excellent speed and load turndown characteristics to
allow maximum flexibility of operation.
The SGT-400 mechanical drive package is very compact, providing a small footprint
and a high power-to-weight ratio. Designed for applications where speeds and loads
vary, the SGT-400 can operate over a range of different demands:
Compressor applications
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Gas injection, gas processing and refrigeration projects utilizing Siemens
bespoke centrifugal compressors (or other proprietary manufacturer’s
compressors)
Gas boost and gas transmission projects utilizing Siemens standard preengineered centrifugal pipeline compressors
Pump applications
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Utilizing proprietary manufacturer’s driven unit pumps of Siemens or client
choice, ideally suited to water injection and fluid transmission projects
Maintenance
Repairs, maintenance and customer support
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Multiple boroscope-inspection ports
Site maintainability or optional rapid core exchange as required by customer
Designed for maintenance:
- Horizontally split compressor casing
- Horizontally and vertically split inlet casing
- Combustion chambers, flame tubes and igniters easily accessible for inspection
- Large side-doors on enclosure for equipment change-out
- Gas generator and power turbine removal on either side of package
Customer Support
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Global support network of Authorized Service Centers
Emergency service – 24 / 7 specialist helpdesk
Full field service
Remote diagnostic service available, including collaborative troubleshooting and
remote problem solving
OEM modernizations and upgrades
In-house or on-site training programs
Range of maintenance and service contracts available
Combustion burners, chambers and igniters easily accessible for inspection
Large side-doors on enclosure for equipment change-out
Gas generator and power turbine removal on either side of package
Vertical split between gas generator and power
Designed for ease of access to turbine sections.
Horizontally split compressor casing
Horizontally and vertically split inlet casing