IBA ibaPQU-S, Manual

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Manual ibaPQU-S
72
Issue 1.5

Normalization:
Hn/H1 : All harmonics are normalized to the value of the fundamental frequency,
i.e. divided by this value. This corresponds to the relative values in ibaPDA, how-
ever without the factor 100 for percent.
Hn/RMS : All harmonics are normalized to the RMS value, i.e. divided by the RMS
value
Hn : absolute value of the harmonics
Limit profiles
With this option you can predefine a limit profile for the harmonics or the interharmonics.
This profile can be displayed in the Spectrum view. In addition, the predefined limits are
saved as additional information in order to facilitate a later analysis.
You will find further information how to configure additional profiles in the chapter 10.3.1
“Grid module“.
“Analog” tab
The Spectrum submodule calculates the absolute or relative harmonics 1-50 and the
absolute or relative interharmonics 1-50 for the selected input channel plus the funda-
mental frequency and the total harmonic distortion in the 200 ms measurement interval.

Name
The names are assigned by default. To allow an unambiguous identification, they contain
the input channel and the characteristic value. You can additionally assign two comments
by clicking the
icon in the signal name field.

Function, order, unit
Displays the properties