Harmonic Analysis In Expert Mode - AEMC PowerPad 3945-B User Manual

5.2.4

Harmonic Analysis in Expert Mode

Press on the
function button "V" or "A".
Example of a typical display:
59.98Hz
02
05
08
11
14
17
20
23
7.3
V
• First column: The harmonics inducing a negative sequence are displayed.
• Second column: Those inducing a zero sequence (triplens added into the neu-
tral) are displayed.
• Third column: Those inducing a positive sequence are displayed.
Harmonic content is useful to evaluate the influence of harmonics that cause heat-
ing of the neutral or on rotating machines.
Power Quality Analyzer Model 3945-B
button to select "-.+" and then either the "V" or "A" variable
0
03
06
09
12
15
18
21
24
15.5
%
A
07/25/02
04
07
10
13
16
19
22
25
%
Figure 5-11
10:26 100%
.+
3L
L1
L2
L3
4.8
%
49