A steam turbine is a device that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft.

The steam turbine is a form of heat engine that derives much of its improvement in thermodynamic efficiency from the use of multiple stages in the expansion of the steam, which results in a closer approach to the ideal reversible expansion process




AA GROUP is the authorized distributor of the largest steam turbine manufacturer Hyundai Heavy industaries Co, Ltd. (HHI),

AA GROUP is dedicated to providing customized steam turbine for all global oil & gas industry clients









Single-Stage Steam Turbine Horizontal

The steam turbines of the SSH type are a single stage impulse turbine, consisting of a velocity-compounded stage with two rows of rotating blades and a row of stationary blades. In the design and manufacturing process, special consideration has been paid to the following points.

Single-Stage Steam Turbine Horizontal

High Efficiency


Pumps / Generators / Compressors / Fans & Blowers

Excellent Performance / Simple Construction and Easy Maintenance





Multi-Stage Steam Turbine

The turbines of MSS type are single casing, multi-stage, high-speed and condensing steam turbines. These turbines are assembled and mechanical running tested at shop for easier shipment, delivery, and installation.

These turbines are mounted on a common baseplate which accommodates lube oil unit, oil reservoir, instrument panel and can accommodate gearbox and driven equipment according to client’s requirement









Combined Gear & Steam Turbine Horizontal

The steam turbines of the CSH type are combined with an integral reduction gear unit and are of the overhung design (turbine wheel is mounted outboard of the bearing housing), so that it become possible to start the machine from cold to full power rapidly due to thermally elastic construction. These characteristics provide the most cost – effective and the most compact package. The simple modular construction means that it is easy to optimize the output for your particular application.








Hyundai Steam-Turbine Generator

The HSG set consists of HHI steam turbines and HHI brushless generators that are the self-exciting and revolving field type, equipped with automatic voltage regulator (AVR). The generators comprise a rotor, a stator having magnetic poles and a main generating winding, and incorporate rotating rectifiers, which provide the excitation current for the main machine. The generators are connected to the steam turbine for converting mechanical power into electrical power.

The generators are adequate to coupled to various types of turbines, and comply with the applicable standards and regulations, and meet special requirements of clients.Our reliable steam turbine generator sets produce power for various industry facilities including waste-to-energy facilities. We work closely with our clients to meet their specific needs.





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