Siemens Steam Turbines

Flexible, reliable and robust

General Information

Description
Output Overview

Siemens offers a comprehensive range of steam turbines from 45 kW to 1,900 MW, with the flexibility to address the specific requirements of your particular application. With over a century of experience and continuous development in steam turbine technology, Siemens has stayed at the forefront of development and is a prime partner for your business.

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Product Information

Steam Turbine SST-300

Description
Technical Data
Benefits
Design Concept
Package
Service

The SST-300 is a single casing steam turbine, providing geared drive to a 1,500 or 1,800 rpm generator and packaged in a base frame-mounted design. Its modular package design allows a wide variety of configurations to satisfy the industrial customer’s individual needs in the most economical way.

Typical applications for the SST-300 are in:

Industrial power plants, e.g. captive power plants, chemical, petrochemical, sugar and textile industry, pulp and paper mills, steel works and mines
Cogeneration and district heating plants
Waste to energy, e.g. waste incinerators; biomass plants
Combined-cycle applications
Petrochemicals, refineries, FPSO applications

Technical Data
Power output	up to 50 MW
Inlet steam pressure	up to 120 bar / 1,740 psi
Inlet steam temperature	up to 520 °C / 970 °F
Bleed	up to 60 bar / 870 psi
Controlled Extraction
Pressure	up to 45 bar / 653 psi
Temperature	up to 400 °C / 750 °F
Exhaust Pressure
Back pressure	up to 16 bar / 230 psi
Condensing	up to 0.3 bar / 4.4 psi
Exhaust area	0.28 - 1.6 m² / 3.0 – 17.2 sq. ft.

All data are approximate and project-related.

Compact design minimizes space requirements of installation
Short delivery time as the design is proven and modular
Low maintenance costs due to easy access to mechanical components
Remote control for simple operation
High reliability, availability and efficiency
Operational flexibility including rapid load changes
Fast and early layout planning

Single casing steam turbine
Base frame-mounted design, geared for generator drive
Customized steam path
Proven, modular and thermoflexible design
Double internal extractions

The single casing turbine with horizontal joint flange has a symmetrical casing, which allows short start-up times and quick load changes. It has a compact and flexible design with a high degree of standardization.

Internal valve arrangements, controlling the steam flow to the back end of the turbine, are used to maintain constant process steam extraction pressures over a wide flow range. The SST-300 rotor is of solid forging, and is fitted with resonance-proof blading, the reliability of which is further enhanced by a combination of shrouded blade tips and low static steam-bending stresses that keep the total stress load on the blades to acceptable levels. The reduction gears are taken from the existing range of world-class gear manufacturers and have proven high reliability and performance.

For generator drives

All components and auxiliaries are mounted are installed on a common base frame, including the components of the oil system.

The SST-300 base frame packaged unit can either be placed on a simple ground level concrete block foundation or on an elevated foundation. The SST-300 series can be equipped with upward, downward or axial exhaust orientation to fit with the selected installation arrangement.

For mechanical drives

For mechanical drive applications the turbine and auxiliaries are mounted on a base frame, which is instrumented and wired. Mechanical drive units are designed in accordance with API (American Petroleum Institute) standards.