SGen-3000W generator series

High-power generator with proven water/hydrogen cooling technology

Outstanding performance for large gas and steam power plant applications

Our latest water-/hydrogen-cooled generators benefit from proven design and technologies as well as the application of our building-block approach. They share many features with other products across our portfolio. This  allows us to optimize material selection and performance to provide you with a low-cost, highly efficient, and easily maintained generator for high-power applications.

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Highlights of the SGen-3000W generator series

Modern grids require high operational flexibility because of the increased integration of renewable energy sources. Our design supports high ramp-up/down rates, frequent start/stops while maintaining low thermal mechanical stress in the stator windings.

Our proven MICALASTIC® insulation system and Global Vacuum Pressure Impregnation (GVPI) technology ensure maximum electrical endurance and outstanding availability.

Your benefits:

  • Insensitive to thermal cycling
  • No maintenance required
  • Very low mechanical stress during operation
  • Non-flammable and self-extinguishing; no fire-extinguishing system needed

Combining GVPI stators with water cooling enables uniform temperatures and low stress levels to enhance operational flexibility. The proven reliability is greater than 99.9% for more than 1,700 stator windings between 10 and 22 kV with an output of up to 1,300 MVA. Our fleet leader has over 150,000 operating hours and 3,320 start/stop cycles.

Our generators display a high level of common parts across the portfolio (e.g. stator core assembly and rotor). The reusing of parts and components improves the availability of spare parts and increases the quality in manufacturing and assembly at our factory as well as on site.

Global Vacuum Pressure Impregnation (GVPI) wound stator cores

The SGen-3000W implements technology featuring the latest verified design with more than 1,700 GVPI stators in operation across all operating ranges and a fleet-leading water-cooled GVPI stator with over 150,000 hours of operation and more than 3,320 start/stop cycles with no indication of thermal-mechanical stress-related  issues. Hydrogen cooling with water-cooled stator bars makes this generator series ideal for any operating regime.

Global Vaccum Pressure Impregnation (GVPI) stator cores

Our patented MICALASTIC® insulation system using GVPI is highly resistant to mechanical and thermal stresses while featuring excellent electrical properties.

Generator cooling

Enhanced cooling gas flow through patented ramped sub-slot design for a uniform cooling distribution.
Our engineers use the latest Computer Fluid Dynamics (CFD) tools to validate the ventilation circuit of the SGen-3000W series to ensure that our generators will meet your as well as our own high expectations.

Service and maintenance

The SGen-3000W generator series was designed for simplified service and maintenance. Along with eliminating hydrogen-related generator auxiliaries, various service-friendly design solutions have been implemented. Its components have been tried and tested over decades of operation, achieving a reliability rate of more than 99.9%.  To minimize downtime, the maintenance intervals have been aligned with those of the prime mover and now allow for longer intervals between servicing than ever before. The rotor is designed for lifetime operation without removal for service.

Short construction and commissioning times

Our generators arrive on-site almost fully assembled with the rotor installed – a design feature that simplifies the installation process. Our certified engineers have extensive experience in commissioning and help to achieve faster start-up times and smooth operation.
The SGen-3000W is designed for easy access. The many manholes installed allow for the majority of maintenance to be completed requiring very little generator disassembly.

Condition-based maintenance

Besides standard inspection scopes and intervals, you also have the option of implementing a condition-based maintenance plan using customized installed instrumentation, component analytics, and a remaining life counter for better predictions. Based on advanced data analytics performed by experts in our network of power diagnostics centers, we can advise you on a maintenance schedule according to your specific operation conditions and needs.

State-of-the-art manufacturing

Our reliable and robust generator is the result of our manufacturing and engineering design teams working in close collaboration throughout its development. By applying latest digital technologies, our manufacturing facilities stepped up to create a world-class product for you with excellent lead times.

Manufacturing excellence

The SGen-3000W generator design focuses on the strengths of our manufacturing facilities using tried-and-tested manufacturing processes and newly co-developed processes to efficiently build generators for you.

Manufacturing technology

Our manufacturing facilities implement as many automated processes as possible, resulting in a high ratio of repetition in the construction of our generators. Automated processes are key to building high-quality, robust generators that operate reliably for you.

Tailor-made for today's flexible operating environment

The SGen-3000W series utilizes proven technology with endurance verified in the field showing it can withstand the rigorous operating conditions of electrical grids impacted by the increasing integration of renewable energy sources.

Water-cooled Global Vacuum Pressure Impregnation (GVPI) stator

Directly water-cooled stator bars protect against thermal-mechanical stress-related issues that are challenging for indirectly cooled coils in a highly cyclic environment.

Effective technology for all power ranges

The SGen-3000W series is a direct extension of the SGen-2000P product line, utilizing the stator core and rotor technology in a H2 cooling medium to significantly increase the performance capacity of your application.

Technical data

Frequency                                                            50 Hz60 Hz
Apparent powerup to 1,300 MVAup to 1,300 MVA
Efficiencyup to 99%up to 99%
Designed for power factor0.800.85
Terminal voltageup to 27 kVup to 26 kV
Design insulation classClass FClass F
Weight (approx.)up to 425 tup to 390 t

Gas and steam applications

Water-/hydrogen-cooled generators for high power demands

Flexible gas and steam power plants will remain a key component of a demand-driven power supply.
They form the solid foundation of a diverse and clean energy mix, which is indispensable for meeting the world's current and future challenges.
Our water-/hydrogen-cooled generators complement the turbine packages of any manufacturer and meet grid and environmental requirements as well as your individual needs.

Generators for steam power plants

Our generators can be flexibly integrated into combined cycle power plants or steam tailing applications.

Generators for combined cycle power plants

We supply generators for large simple or combined cycle power plants, suitable for peak, intermediate or base load duty, as well as cogeneration applications.

Find out more about our products

You would like a brochure, are interested in technical details or further information? Please visit our download section below.

Brochures and technical papers

SGen-2000P Factsheet
PDF (4 MB)
SGen-3000W Factsheet
PDF (4 MB)
PDF (2 MB)

Proven in commercial operation: SGen-3000W reference highlights

With over 27 years of fleet operation for the SGen-3000W series we can draw on our experience of more than 120 units.

SST-6000, Luenen

Lünen, Germany (2013)

  • Customer: Trianel Kohlekraftwerk Lünen GmbH & Co. KG
  • Power output: 750 MW
    Apparent power: 993 MVA
    Frequency: 50 Hz
    Terminal voltage: 27 kV
  • Scope: SST-6000 steam turbine, SGen-3000W generator

Lausward, Düsseldorf

Lausward, Düsseldorf, Germany (2016)

  • Customer: Stadtwerke Düsseldorf AG
  • Power output: 603.8 MW(e), up to 300 MW(th)
    Apparent power: 1 x 608 MVA
    Frequency: 50 Hz
    Terminal voltage: 21 kV
    Efficiency: ~61.5%
  • Scope: SCC5-8000H 1S with 1 x SGT5-8000H gas turbine, 1 x SST5-5000 steam turbine, and 1 x SGen5-3000W generator

Samsun, Türkiye

Samsun, Turkey (2015)

  • Customer: Cengiz Enerji
  • Power output: 600 MW
    Apparent power: 700 MVA
    Frequency: 50 Hz
    Terminal voltage: 21 kV
    Efficiency: > 60%
  • Scope: SCC5-8000H 1S with 1 x SGT5-8000H gas turbine, 1 x SST5-5000 steam turbine, 1 x SGen5-3000W generator, SPPA-T3000 I&C system, and BENSON® HRSG

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