Siemens Sicam P855 7KG85 Series Device Manual page 36

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