Description
3.4 Load profile
SENTRON PAC4200
36 System Manual, 09/2009, A5E02316180B-02
3.4.2 Historical load profile
Measured variables recorded
SENTRON PAC4200 records the following measured variables:
Table 3- 3 Historical load profile
Measured variable Cumulated
power
Power
demand
Minimum
instantaneous
value
Maximum
instantaneous
value
Active power import X X
Active power export X X
±X ±X
Reactive power import X X
Reactive power export X X
±X ±X
Apparent power X X X X
The values are recorded per demand period or subperiod:
● Fixed block method
All values are recorded per demand period.
● Rolling block method
Arithmetic power demand values are recorded per demand period.
Cumulated power demand values and maximum / minimum values are recorded per
subperiod.
Accessing the load profile memory
● The complete load profile memory can be read out.
● A definable number of periods can be read out starting at a definable period number.
● The complete load profile memory can be cleared.
Storage concept of the load profile memory
The memory of SENTRON PAC4200 is designed as a circular buffer. If the maximum
available memory is exceeded, the oldest data is overwritten by the newest data.