Maximum demand registers are storing the highest actual average value measured in each period. At the end of each period the actual average value from 1.0.x.4.0 registers are compared with the maximum demand value. If the actual average demand value is higher than the maximum demand value, it replaces the value stored in the maximum demand register.
Maximum demand values are set to zero value at the end of each billing period.
Maximum demand can be calculated for:
– active energy in both directions
-reactive energy per quadrant and as sum of two quadrants
– apparent energy in both flow directions
The tariff 1…8 is indicated by i.