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5.2 Harmonics Mode
Press the harmonic display mode button -
Use the function buttons to select the type of harmonic analysis:
V - Single phase voltage analysis
A - Current analysis
VA - Power and direction flow analysis
U - Phase-to-phase voltage analysis
The
out, in increments of 2%, 5%, 10%, 20%, 50% and 100%.
5.2.1
Single Phase and Phase-to-Phase Voltage Analysis
59.95Hz
Vh 03
1
%
50
2
25
V
Values measured for each phase, at cursor position (in the example shown
above, the 3
The information displayed is:
-
Harmonic order.
-
Percentage relative to the fundamental.
-
RMS value.
-
Phase angle in relation to the fundamental, according to the measure-
ment type chosen (in this example V) with the variable function buttons
just below the screen.
46
and
buttons allow the user to zoom in or
31.5
1
%
31.4
v
+003°
1
3
5
7
9 11 13 15 17 19 21 23 25
A
VA
harmonic is selected and displayed).
rd
07/25/02
1.3
2
%
3
2.7
v
+113°
U
Figure 5-8
Power Quality Analyzer Model 3945-B
10:26
100%
0.6
%
1.2
v
-094°
.+
3L
L1
L2
L3
3
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