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4.5 Measurement
4.5.1 FFT / Spectra
Navigation: “Advanced” – “Spectra”
The
Spectra
panel
displays FFT harmonic analysis either of voltage, current, active power,
reactive power or apparent power.
There are four different options for visualisation:
-
Harmonics
-
Interharmonics
-
Higher Frequenciese in 200Hz bands up to 9 kHz
-
Supraharmonics in 2kHz bands up to 68kHz
1
2
3
4
1.
Displayed values
– voltage,
current, active power, reactive
power or apparent power
2.
Buttons for zoom or unzoom
in the graph and for move
through all harmonics in
zoomed graph
3.
Phases buttons
4.
Spectra
200Hz band visualisation
5
5.
Selection between Harmonic
order or Hertz (Hz) visualisation
6.
Up to 3 charts can be shown
below each other
7.
Zoom and Move functions
8.
Switch between table and
spectra visualisation
9.
Switch between % values and
absolute values
6
7
8
9
Summary of Contents for PQA8000
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