18Fig.11. View of the configuration window of measurement parametersSetting of Measurement ParametersAfter choosing the group: ratios, power synchronization, time, follo-wing elements can be configured (fig. 11.):a) current transformer ratio. The multiplier is used torecalculate the current in the transformer primaryside. It is set up on 1 by the manufacturer.b) voltage transformer ratio. The multiplier is used torecalculate the voltage in the transformer primaryside. It is set up on 1 by the manufacturer.c) way to synchronize the mean power:- 15 minutes’ walking window – mean power PAVwill be recalculated for the last 15 minutes, actualizedevery 15 seconds, i.e. walking window,- measurement synchronized with the clock every 15, 30or 60 minutes - mean power PAV will be actualized every15, 30 or 60 minutes synchronized with the external realclock (fig. 12).It is set up on the walking window by the manufacturer.