The Extraction Condensing Turbines are used when a constant pressure steam flow has to be extracted for process purposes. The constructional characteristics of these Turbines are very similar to Condensing Turbines.
These Turbines are typically used for co-generation where the Turbine meets both the power and steam demand of the process plant. In these types of Turbines the power generated can be maintained more or less at a steady level despite variation in process steam demands.
This type of turbine has the flexibility to satisfy wide variations of process steam at a constant pressure and to meet electric power demands.
In some cases it may be necessary to have both bleed and controlled extraction steams from the condensing turbine. These turbines are of bleed cum extraction condensing type.
