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6.4.2. L1 PHASE-TO-PHASE VOLTAGE HARMONICS DISPLAY SCREEN
Information about the harmonic
at the cursor position.
Uh 03: harmonic number.
%: level of harmonics with the
fundamental RMS value as
reference (%f) or the (total) RMS
value as reference (%r).
V: RMS voltage of the harmonic
in question.
+000°: phase shift with respect
to the fundamental (order 1).
max – min: indicators of the
maxi- mum and minimum of the
level of harmonics or by
pressing the button.
THD: total harmonic distortion.
Ud: phase-to-phase RMS
distortion voltage.
NOTE: Filters L2 and L3 display the phase-to-phase voltage harmonics for phases 2 and 3, respectively. The screen is
identical to the one displayed for filter L1.
6.5. EXPERT MODE
Expert
mode is available with a three-phase connection only. It displays the influence of the harmonics on the heating of the
neutral and on rotating machines. To display Expert mode, select
button. The selection is highlighted in yellow and the screen simultaneously displays Expert mode.
From this screen, two sub-menus are available:
1 V for three-phase set-ups with neutral or U for the three-phase set-up without neutral.
2 A for the expert mode in current.
NOTE: The breakdown into sequences shown below is valid only for balanced loads.
6.5.1. PHASE-TO-NEUTRAL VOLTAGE EXPERT MODE DISPLAY SCREEN
For three-phase set-ups with neutral, the V sub-menu displays the influence of the harmonics of the phase-to-neutral voltage on the
heating of the neutral and on rotating machines.
Harmonics inducing a negative
sequence.
Harmonics inducing a zero
sequence.
For three-phase set-ups without neutral, the U sub-menu displays the influence of the harmonics of the phase-to-phase voltage
on the heating of revolving machines.
Harmonic selection cursor. Use the
or button to move the cursor
Figure 6-9
Figure 6-10
52
Display of the 3 phases 3L, of L1, L2 or
L3. To select the display press the or
button.
Horizontal axis indicates the orders of
the harmonics. The level of the harmonic
is given as a percentage with respect to
the fundamental or to the total RMS
value.
Rang DC: DC component.
1 to 25: harmonics of order 1 to 25.
When the cursor exceeds order 25,
order 26 to 50 appears.
from a harmonics display screen by pressing the or
Harmonics inducing a positive
sequence.
%: level of harmonics with the
fundamental RMS value as reference
(%f) or the (total) RMS value as
reference (%r).
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