Power Quality Analyzer Model 3945
39
Cursor enables selection up to 50
th
harmonic, with the
buttons. As soon
as the 25
th
harmonic is reached, the 25
th
to 50
th
range appears (0 represents
the DC component).
Selection of expert mode
-.+
is available for 3-phase hookups by pressing the
buttons (see §5.2.4 for description).
5.2.2 Single Phase and Phase-to-Phase Current Analysis
07/25/02
60.00Hz
10:26
100%
.+
3L
L1
L2
L3
34.1
%
36.5
%
Ah 03
2.8
A
THD
-040°
max
34.5
%
max
1
.1
%
V
A
VA
U
50
%
25
1
3
5
7
9 11 13 15 17 19 21 23 25
Figure 5-9
Selection of 3-phase or individual phases L1, L2 and L3, displays:
• The total THD
• The MIN and MAX instantaneous values
• The parameters for the harmonic order selected by the cursor:
- Percentage in relation to the fundamental
- RMS value and phase angle in relation to the fundamental component
• MIN, MAX instantaneous values for the selected current harmonic
MIN, MAX values are reset each time the cursor position is changed.
