E-47
Computations
Power Quality Recorder SIMEAS Q80 7KG8080, Operating instruction
E50417-B1074-C419-A2, Release 09.02.2011
11 Computations
For a list of all measurement channels see
. Bold and italic required for EN 50160
Parameter
Description
Remark
Voltage, current
RMS-values
Curve plots (reduced RMS values)
Moving RMS value with each half-
period over one period
One data point at least per 24 h
Flicker
short-term and long-term flicker
momentary flicker value and maximum
optional
Frequency
50 Hz
60 Hz
40 Hz to 57,5 Hz
50 Hz to 69 Hz
Harmonics
voltage, current, power, cos phi
up to the 50th,THD
For EN 50160: up to the 25th
required
Interharmonics
up to 10 frequencies
10 Hz to 3000 Hz, resolution: 5 Hz
Symmetry
zero-, positive-, negative phase sequence
system
Unbalance
negative/positive * 100 %
Power
1-, 2-, 3-phase, overall system
active, reactive, apparent power
power factor
Trigger
for voltage and current –
RMS-trigger, curve shape trigger
amount of triggered recordings
limited only by the memory card
used
Voltage events
overvoltage, dips,
outages,
rapid voltage fluctuations
slow voltage fluctuations
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