Siemens Sicam P850 7KG85 Series - Page 36

4 Measurands and Recording
4.1 Measuring and Recording System
36 SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
The interaction of the recorders is depicted in the following figure:
Figure 4-3 Block Diagram of Recorders
A/ D
Converter
Synchronization
Frequency
Voltage Magnitude
Harmonics
Unbalance
V(t)
Event
Recorder
1)
Measurand
Recorder
1)
Interruptions, Swells
Dips
Changes on
V
rms
(
½
)
Trend
Recorder
1)
Fault
Recorder
I (t)
Current
Power, Pf,
Aggregation
Measurand
Recorder
Flicker meter
V(t)
Pst, Plt
Trigger
PQ events:
V(t)/I(t)
V(t)/I(t)
or
V
rms
(½)
I
rms
(½)
Measurand
Recorder
Sample points
1)
Only SICAM P855