Rockwell Automation Publication 1412-UM001D-EN-P - September 2012 33
Display Modes Chapter 3
Single-phase and Phase-to-phase Current Analysis
Selection of three-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
Power and Direction Flow Analysis
Harmonics on this screen are shown with either a positive or negative
orientation.
Since the bar selected in this example is negative, it indicates that it is a harmonic
from load to source.
MIN, MAX values are reset each time the cursor position is changed.
07/25/0260.00Hz 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
1357911 13 15 17 19 21 23
25
07/25/0259.98Hz 10:26 100
%
.+
3L
L1
L2
L3
-63
%
G
VAh03
min
-
22 %
-
122 °
max
-
22 %
V A VA U
100
-100
%
0
1357911 13 15 17 19 21 23
25
