Technical Documentation
KSR-Z – Capacitor-Bank Protection Relay
Rev. 04
Page
13
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36
3.2
Menu “harmonics”
All harmonics are normalized to 100% of the fundam
ental harmonic. Key “
“ selects the data source
(voltages, currents), “
“ and “
“ move the display to higher and lower harmonics. The index, which
is shown with each harmonic, specifies its order. The fundamental harmonic (index 01) is not shown
as it is always 100%.
If the harmonic display quotes “not available”, the current or voltage, which
sources the harmonic calculation is below a certain threshold or even not present.
This makes the FFT calculation of the harmonics very inaccurate or impossible.
!