En50160 Evaluation Limits And Options - Satec Expertmeter EM720 Operation Manual

Chapter 5 Configuring the EM720
EN50160 Harmonics Survey Log
EN50160 Power Quality Event Log

EN50160 Evaluation Limits and Options

EM720 Power Quality and Revenue Meter
Data log file #10 is automatically configured in the EM720
for recording harmonics survey statistics on a weekly or
daily basis. You can see parameters recorded to the file in
Appendix D. The file stores maximum THD (total, odd and
even harmonics) and maximum harmonic voltages up to
order 50 collected within each evaluation period.
Harmonics survey is normally intended for trouble-
shooting harmonic
networks. It can be separately disabled or enabled in your
meter via the EN50160 Advanced Setup. The evaluation
period for harmonics survey can be selected independently
from the EN50160 compliance evaluation.
You can upload and view the harmonics survey data
collected by your device via PAS reports or via common
PAS data logs views.
The EM720 provides the EN50160 Power Quality (PQ)
recorder that can detect EN50160 incidents and record
each individual power quality event to the log file with the
start and end timestamps and a fault magnitude. It may
be useful for trouble-shooting problems throughout the
electrical network, for example, to identify and locate the
source of a power quality event and to select an
appropriate solution.
The EN50160 power quality report can be uploaded and
viewed via PAS (see
Event Log). Transient overvoltages and short-duration
voltage dips and temporary overvoltages recorded to the
file can also be viewed in PAS as magnitude/duration pairs
on the well-known ITIC curve chart for assessing the
minimum equipment immunity.
The PQ recorder is programmable to trigger the waveform
recorder to record the fault waveforms before, during and
after the PQ event for detailed event analysis.
Limits for evaluation
characteristics can be set via the
Setup and, for harmonic and interharmonic voltages, via
the EN50160 Harmonics Setup (see
Limits Setup).
The EN50160 evaluation options can be changed via the
EN50160 Advanced
EN50160 Logging Options
The memory allocated in your meter for the EN50160
compliance statistics and harmonics survey data is
sufficient for 14-month data recording on a weekly basis.
Configuring the EN50160 Recorders
problems throughout
Viewing EN50160 Power Quality
of the
EN50160 PQ Recorder
EN50160 Harmonics
Setup.
electrical
EN50160 voltage
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