Extraction Back-pressure Turbines

Characteristics

Extraction back-pressure turbines are employed when two or more types of process steam at different pressures are required. Process steam at required pressures is supplied through extraction openings and turbine exhaust, while generating power in the process. Electric output is dependent on the demand for process steam. If required, multiple steam extractions at different temperatures and pressures for plant processes can be supplied through extraction openings.

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Steam Turbine Specifications

Type Extraction back-pressure turbine
No. of casing Single casing
Output Up to 80 MW
Main steam conditions Up to 13.7 MPa / Up to 566°C
Revolutions per minute 3,000 min-1 (50 Hz) / 3,600 min-1 (60 Hz)

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