4 Measurands and Recording
4.1 Measuring and Recording System
31SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
4.1.2 Recording of Measurands and Events in SENTRON PAC5200
4.1.2.1 Recorder Types
SENTRON PAC5200 provides various recording options to monitor and analyze the power quality.
The respective measuring interval of the recording is time-stamped to enable a correct time evaluation.
Table 4-2 Recording Measured Values
Recording Measurands Storage interval/storage
method
Application
Measurement
recorder
Frequency 10 s
(fixed)
Long-time monitoring of the
power quality for example
according to EN50160
Mains voltage level
10 min
(30 s, 1 min, 10 min, 15 min,
30 min, 1 h, 2 h)
Unbalance of the
mains voltage
Harmonics of the
mains voltage
Additional data
(for example power
values, min/max
values etc.)
Flicker Pst determined over 10 min;
Plt over 2 h (12 Pst values)
Monitoring of the power
quality according to
IEC 61000-4-15
Event recorder Voltage dips,
Voltage interruptions
Residual voltage V
rms
(1/2) and
time stamp (duration) Long-time monitoring of the
power quality according to
EN50160, classification of
voltage events, for example
ITIC curve
Voltages swells Maximum voltage amplitude
V
rms
(1/2) and time stamp
(duration)
Trend recorder V
rms
(1/2) For measured value changes
(in percent or absolute) and
cyclic (time interval)
Subsequent analysis of the
power quality with any grid
codes
Fault recorder Voltages,
Currents
Voltage/current variation
triggers,
acquisition of sampled values
Analyzing the causes of
power quality problems
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