Simultaneous Display - AEMC 8230 User Manual

5.1.2

Simultaneous Display

1
ITEM FUNCTION
1.
Column of voltage-related values.
RMS: True RMS value calculated over 1 second.
DC:
Offset (DC component).
THD: Level of total harmonic distortion (also called THD-F).
CF:
Peak factor calculated on the waveform displayed.
PST: Short-term flicker (over 10 minutes).
DF: Distortion factor (also called THD-R).
2.
Column of current-related values.
RMS: RMS value calculated over 1 second (the RMS value of the current is true - with
DC component - only with a MR193 sensor).
THD: Level of total harmonic distortion (also called THD-F).
CF:
Peak factor calculated on the waveform displayed.
DC: DC component of the current, with MR193 sensor only.
KF:
K factor. Gives an indication of the sum of the current harmonics and can help
in choosing a transformer.
DF:
Distortion factor (also called THD-R).
NOTE: DC current will be displayed, however the values are only valid when a
current probe capable of measuring DC is used. The MR193 probe is available for
this purpose.
28
49.99Hz
V
221.8
RMS
+0.1
DC
38
THD
1.35
CF
0.27
PST
3.7
DF
max
min
02/25/06
A
86.1
61.4
%
2.31
4.69
KF
52.2
%
1
2
3
Figure 5-3
Power Quality Analyzer Model 8230
10:26
%
%
2