Computations - Siemens SIMEAS Q80 Operating Instruction

11

Computations

For a list of all measurement channels see
Parameter
Voltage, current
Flicker
Frequency
Harmonics
Interharmonics
Symmetry
Unbalance
Power
Trigger
Voltage events
here . Bold and italic required for EN 50160
54
Description
RMS-values
Curve plots (reduced RMS values)
short-term and long-term flicker
momentary flicker value and maximum
50 Hz
60 Hz
voltage, current, power, cos phi
up to the 50th,THD
up to 10 frequencies
10 Hz to 3000 Hz, resolution: 5 Hz
zero-, positive-, negative phase sequence
system
negative/positive * 100 %
1-, 2-, 3-phase, overall system
for voltage and current –
RMS-trigger, curve shape trigger
overvoltage, dips,
outages,
rapid voltage fluctuations
slow voltage fluctuations
Remark
Moving RMS value with each half-
period over one period
One data point at least per 24 h
optional
40 Hz to 57,5 Hz
50 Hz to 69 Hz
For EN 50160: up to the 25th
required
active, reactive, apparent power
power factor
amount of triggered recordings
limited only by the memory card
used
Power Quality Recorder SIMEAS Q80 7KG8080, Operating instruction
E50417-B1074-C419-A2, Release 09.02.2011
Computations E-47