What is the extraction pressure dependence in an extraction turbine?

In an extraction turbine, the extraction pressure is maintained constant with varying turbine loads to ensure efficient operation and consistent steam quality during extraction. This is important because the extraction steam is often used for heating or in industrial processes where stable conditions are necessary. By keeping the extraction pressure constant, the turbine can operate efficiently across a range of power outputs, preventing fluctuations that could lead to inefficiencies or operational issues.

When the extraction pressure remains constant, it ensures that the steam conditions are stable, which helps in optimizing the performance of both the turbine and the systems that utilize the extracted steam. This operational strategy allows for better management of energy resources and contributes to overall system reliability.