Siemens Footprint™ Generator - Siemens Energy Sector or brushless system, depending on customer...
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Answers for energy. Performance Enhancement – Generator Our Solution In a joint effort, you and Siemens can find the best solution for your power plant by performing a comprehensive cost-benefit analysis. Siemens can then advise you of recommendations whether to modernize or replace your generator. In the case of purchasing a new machine, the generator can either be replaced during a major over- haul, or the replacement generator can be individually adapted and implemented as a separate measure. Prior to replacing the generator, your unit is subjected to a comprehensive and detailed analysis. History, current mainte- nance status, technical records and dimen- sional data as well as electrical parameters, such as power rating, efficiency, power factor, reactances and rated voltage are taken into consideration for the purpose of this analysis. In addition to generators from our own product range, including AEG, Parsons and Westinghouse, Siemens also offers custom-fit replacements of generators by other suppliers. Features Siemens Footprint generators of the SGen-100A-2P series can be used in various types of power plants and con- figurations. They reach power ratings of up to 300 MVA and are designed for up to 10,000 start/stop cycles. Due to its modular design concept, the air-cooled Footprint generator can be tailored to fit into the existing plant con- figuration. This concept can allow for an efficient and individual adaptation of the new generator to local site conditions and has already been successfully in use for years. The existing foundation and electrical connections can remain in use and the axial shaft center height main- tained. Furthermore, the amount of A characteristic of Siemens generators has been their extensive service life. They have operated in some power plants for several decades without failure. If required, older models can be adapted to new efficiency standards and operating modes while increasing availability and reliability through the systematic imple- mentation of modernization measures and upgrades. After a certain age or degree of wear, however, careful consideration should be given to whether further investments in the generator are still profitable in the long term, or whether a complete replace- ment is a more economically viable option. Increased time and effort spent on main- tenance and repair measures, outdated technology and materials, spare part pro- curement issues, as well as signs of aging and damage can all be strong arguments in favor of investing in a new generator and against a partial modernization. Siemens has responded to these demands by introducing the Footprint generator concept. This involves the replacement of older, high-maintenance water-, hydrogen- or air-cooled generators with an output of up to 300 MVA with modern air-cooled Siemens generators. Siemens Footprint™ Generator Tailor-Made Generator Replacement Concept Siemens Footprint generator adapted to existing foundation
Transcript of Siemens Footprint™ Generator - Siemens Energy Sector or brushless system, depending on customer...
Answers for energy.
Performance Enhancement – Generator
Our SolutionIn a joint effort, you and Siemens can find the best solution for your power plant by performing a comprehensive cost-benefit analysis. Siemens can then advise you of recommendations whether to modernize or replace your generator. In the case of purchasing a new machine, the generator can either be replaced during a major over-haul, or the replacement generator can be individually adapted and implemented as a separate measure.
Prior to replacing the generator, your unit is subjected to a comprehensive and detailed analysis. History, current mainte-nance status, technical records and dimen-sional data as well as electrical parameters, such as power rating, efficiency, power factor, reactances and rated voltage are taken into consideration for the purpose of this analysis. In addition to generators from our own product range, including AEG, Parsons and Westinghouse, Siemens also offers custom-fit replacements of generators by other suppliers.
Features Siemens Footprint generators of the SGen-100A-2P series can be used in various types of power plants and con-figurations. They reach power ratings of up to 300 MVA and are designed for up to 10,000 start/stop cycles.
Due to its modular design concept, the air-cooled Footprint generator can be tailored to fit into the existing plant con-figuration. This concept can allow for an efficient and individual adaptation of the new generator to local site conditions and has already been successfully in use for years. The existing foundation and electrical connections can remain in use and the axial shaft center height main-tained. Furthermore, the amount of
A characteristic of Siemens generators has been their extensive service life. They have operated in some power plants for several decades without failure. If required, older models can be adapted to new efficiency standards and operating modes while increasing availability and reliability through the systematic imple-mentation of modernization measures and upgrades.
After a certain age or degree of wear, however, careful consideration should be given to whether further investments in the generator are still profitable in the long term, or whether a complete replace-ment is a more economically viable option. Increased time and effort spent on main-tenance and repair measures, outdated technology and materials, spare part pro-curement issues, as well as signs of aging and damage can all be strong arguments in favor of investing in a new generator and against a partial modernization. Siemens has responded to these demands by introducing the Footprint generator concept. This involves the replacement of older, high-maintenance water-, hydrogen- or air-cooled generators with an output of up to 300 MVA with modern air-cooled Siemens generators.
Siemens Footprint™ GeneratorTailor-Made Generator Replacement Concept
Siemens Footprint generator adapted to existing foundation
www.siemens.com/energy
Your BenefitSiemens’ tailor-made generator replace-ment concept is characterized by the following advantages:■■ Opportunity to increase the efficiency of your power plant
■■ Higher power ratings are possible in most cases.
■■ Foundation is typically not changed.■■ Outage time can be determined more precisely and can, in certain cases, be significantly shorter than for a partial modernization
■■ Risk of finding unexpected signs of aging or damage and the associated costs can be reduced
■■ Potential of a longer service life of all components
■■ Operating and maintenance costs can be reduced in many cases.
If you decide on a new Footprint generator, you can benefit from:■■ Latest Siemens technology ■■ More reliable spare parts services■■ Comprehensive and customized service contracts
■■ Continuous updates on further product developments, maintenance and upgrades.
ReferencesThe Footprint generator concept has been implemented, for example, in power plants in the Czech Republic, Finland, South Africa and Taiwan. More than 500 air-cooled SGen-100A-2P generators are already in operation worldwide.
More detailed information on the Siemens Footprint generator concept is available on our “Footprint™ generator” DVD.
Flexible cooling system Various cooling system configurations are available for the Footprint generator: a closed-circuit water-to-air cooling system, a direct air cooling system with air supplied through a filter or a closed-circuit air-to-air cooling system.
Solid base frame The frame of the replacement generator can be adapted to many existing founda-tions. It can be supplied in a completely assembled state which can lead to a signif-icant reduction of installation time in the field.
SGen-100A-2P generator with brushless excitation system mounted on base frame
existing high-maintenance auxiliaries can be reduced if a water or hydrogen-cooled generator is replaced by an air-cooled machine, thus eliminating the need to replace or service this equipment.
Siemens Footprint generators are charac-terized by the following design features:
Patented rotor cooling system The optimal distribution of the cooling air in connection with an optimal heat transfer in the rotor winding fosters a uniform temperature distribution in the rotor, which in turn can increase efficiency.
Patented outer corona protection system The multiple-layer outer corona protec-tion of the stator winding is designed for a more reliable and durable insulation system.
Proven MICALASTIC® stator insulation The proven epoxy-mica insulation system can enable reliable stator operation, even at some extreme temperatures and under some adverse ambient conditions while keeping the scope of required mainte-nance low.
Optimized vibration behavior The design of the stator end winding has been optimized to help minimize vibration levels during operation and damage to the insulating components.
Adapted excitation system The exciter is available in the form of a static or brushless system, depending on customer requirements. In the case of generator replacement, the existing exciter should be replaced by a modern, low-maintenance brushless excitation system.
Flexible position of generator leads The generator lead box can be designed as a side, top or bottom-mounted assembly.
For more information please contact your local Siemens sales representative.
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Subject to change without prior notice.The information in this document containsgeneral descriptions of the technical optionsavailable, which may not apply in all cases.The required technical options should thereforebe specified in the contract.
