Siemens SICAM Q100 - Page 38

4 Measured Quantities and Recording
4.1 Power Quality Measuring System and Recording System
38 SICAM Q100, 7KG95xx, Device Manual
E50417-H1040-C522-A4, Edition 03.2018
The interaction of the recorders is depicted in the following figure:
Figure 4-5 Block Diagram of Recorders
A/ D
Converter
Synchronization
Frequency
Voltage Magnitude
Harmonics
Interharmonics
Unbalance
V(t)
Event
Recorder
Measurement
Recorder
Interruptions, Swells
Dips
Changes on
V
rms
(½ )
Trend
Recorder
Fault
Recorder
I (t)
Current
Power, Pf,
Aggregation
Flicker meter
V(t)
Pst, Plt
Trigger
PQ events:
V(t)/I(t)
V(t)/I(t)
or
V
rms
(½)
I
rms
(½)
Sample points
Load
Profile
V
Measurement
Recorder
Measurement
Recorder
Mains
Signalling
Voltage
Recorder
Mains Signalling
Voltage