Harmonics Mode; Voltage (V) - AEMC 8230 User Manual

5.3 Harmonics Mode

5.3.1

Voltage (V)

1
2
ITEM FUNCTION
1.
This information concerns the harmonic located under the cursor.
Vh xx:
%:
v:
+000:
Max/Min: Indicators of the maximum and minimum of the level of the harmonic in
THD:
2.
The horizontal axis indicates the orders of the harmonics.
Display of the levels of the harmonics as a percentage with respect to the fundamen-
tal (order 1).
Order 0: DC component.
Order (1 to 25): order of the harmonics. As soon as the cursor goes past order 25, the
range from 26 to 50 appears.
Note: The ► icon to the right of harmonic 25 indicates the presence of harmonics of
order higher than 25.
3.
Analysis of the voltage harmonics
4.
Selection tools:
Use ▲ and ▼ to select a tool.
- Selection of the sub-menu
- Zoom-Out tool. Each press on the Enter button increases the vertical scale.
- Zoom-In tool. Each press on the Enter button decreases the vertical scale.
34
49.99Hz
Vh 01 100.0
max 100.0%
min 100.0%
%
100
50
1 3 5 7
V A
3
Number of the harmonic.
Level of the harmonic with respect to the fundamental (order 1).
RMS voltage of the harmonic in question.
Phase shift with respect to the fundamental (order 1).
question (reset at each change of harmonic number).
Total harmonic distortion (also called THD-F).
02/25/06
228.1
% v
THD
9 11 13 15 17 19 21 23 25
VA V -,+ A -,+
Figure 5-10
Power Quality Analyzer Model 8230
10:26
+000°
1.8
%
4