sst-pac 5000 - steam turbine package
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www.siemens.com/steamturbines
SST-PAC 5000 - Steam Turbine Package
Power and Gas
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Siemens SST-5000 series
A broad range of turbine modules meet individual requirements for power ratings and steam parameters.
Their modularized design guarantees technical replicability. For each project, Siemens customizes the turbine train and blade path to ensure optimal performance.
Preassembled modules reduce coordination effort, on-site assembly time, and technical risk.
The highest reliability and availability are proven by a forced outage rate that is less than half the North American Electric Reliability Council (NERC) average.
Overview
Siemens Steam Turbines of the SST-5000 series are operated in combined cycle power plants (CCPP) and in coal-fired steam power plants (SPP). The SST-5000 steam turbine combined with a SGT-8000H gas turbine, achieves a world record efficiency of 61.5 percent in combined cycle applications.
The SST-5000 series consists of a combined high-pressure/intermediate-pressure (HI) turbine, and a low-pressure (LP) turbine.
It is installed as a low- or high-level arrangement. There are various exhaust configurations available to create an optimized plant layout: down-, single-, and double-sided.
Various extractions are possible for feed water pre-heating (up to 9 stages), process steam, and dis-trict heating.
Turbines of the SST-5000 series are operated in about 130 units in various power plant sites.
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1Customer Benefits
Technical Data
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Frequency: 50 or 60 Hz Speed: 3,000 or 3,600 rpm
Main steam conditions:
Pressure up to 177 bar / 2,567 psi Temperature up to 610 °C / 1,112 °F
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Reheat steam conditions:
Temperature up to 610 °C / 1,112 °F
Power output:
CCPP: 120 MW to 650 MW SPP: 120 MW to 650 MW
Efficiency: CCPP: 61.5 % SPP: 43.0 %
Last stage blade length: 50 Hz: 66,4 to 142,3 cm / 26.2 to 56 inches 60 Hz: 65,5 to 95,4 cm / 25.8 to 37.6 inches
Maintenance of SST-5000
Unit Years 3 years 6 years 9 years 12 years **
EOH* 25,000 50,000 75,000 100,000 **
MinorInspection Medium
Inspection
MinorInspection
MajorInspection
Minor, medium and major inspections including the generator
[ ~ 6 weeks ]***[ ~ 2 weeks ][ ~ 3 weeks ][ ~ 2 weeks ]
First opening of Steam Turbine
Modules
Assembly
Combined high-pressure/intermediate-pressure turbine modules are delivered to site completely assembled – this allows a fast and simple on-site installation.
Due to transportation restrictions, low-pressure turbine modules are delivered in several sections, like the rotor and inner and outer casings.
Auxiliaries
The core turbine modules as well as the auxiliary systems are designed for maximum customer value:
Lube oil system, seal oil system, seal steam system, evacuation system, hydrogen system, and additional systems.sy
*EOH = Equivalent Operating Hours
**Estimated values (base load)
***Depending on shift mode and customer requirements
Opening of HP casing:
Reference examples
Subject to changes and errors. The information given in this document only contains general descriptions and/or performance features which may not always specifically reflect those described, or which may undergo modifica-tion in the course of further development of the products. The requested performance features are binding only when they are expressly agreed upon in the concluded contract.
Published by:
Siemens AG 2016 Power and Gas Division Freyeslebenstr. 1 91058 Erlangen Germany
Customer Support Center:
Phone +49 / (0) 180 / 524 70 00 Fax +49 / (0) 180 / 524 24 71 (Charges depending on provider) E-mail: [email protected] © 02.2016 Siemens AG