User Manual

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6.4.2. THE L1 PHASE-TO-PHASE VOLTAGE HARMONICS DISPLAY SCREEN
This information concerns the har-
monic pointed to by the cursor.
Uh 03: harmonic number.
%: level of harmonics with the fun-
damental RMS value as reference
(%f) or (for the C.A 8333 only) 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

key.
THD: total harmonic distortion.
Ud: phase-to-phase RMS distortion
voltage.
The horizontal axis indicates the
orders of the harmonics. The level of
the harmonic is given as a percent-
age with respect to the fundamental
or (for the C.A 8333 only) 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.
Harmonic selection cursor. Use the  or 
key to move the cursor.
Display of the 3 phases 3L, of L1,
L2 or L3. To select the display press
 or .
Figure 49: Example of L1 phase-to-phase voltage harmonics display
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 (FOR THE C.A 8333 ONLY)
The Expert mode is available with a three-phase connection only. It is used to display the influence of the harmonics on the
heating of the neutral and on rotating machines. To display expert mode press the  or  key of the keypad. The selection is
highlighted in yellow and the screen simultaneously displays the expert mode.
From this screen, two sub-menus are available:
 V for three-phase set-ups with neutral or U for the three-phase set-up without neutral.
 A for the expert mode in current.
Note : The breakdown into sequences shown here is valid only in the case of a balanced load.
6.5.1. THE 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 se-
quence.
Harmonics inducing a positive se-
quence.
%: level of harmonics with the fun-
damental RMS value as reference
(%f) or the total RMS value as refer-
ence (%r).
Figure 50: The phase-to-neutral voltage expert mode screen (three-phase set-ups with neutral)
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.