In cooperation with the Polish company Madex, the calibration of the newly built operational flow measurement on the TG1 and TG3 units in HPP Porabka (Poland) took place on 14th – 18th September 2020. The operational measurement is based on the measurement of pressure difference on turbine spiral (Winter-Kennedy method), the Gibson method was used for calibration.

The calibration on both units was successful, operational flow measurement will achieve high accuracy.