Current Cumulative Frequency (A Only) - Fluke 1743 User Manual

PC Software for 1740 Series
PQ Log Feature Reference
egd015d.bmp
Figure 21. Voltage Parameters
You can easily see which harmonics exceed the permissible limit value and how many
reserves are available. Only the first 25 harmonics in the limit value level file EN
50160.GWD are assigned a limit value. If you wish to examine the harmonics between
25-40, select the limit value level file 50160_1000-2-2.gwd. This selection can be made
through the menu option – Software Settings.
The order of a harmonic is shown under the associated numeric values when you place
the cursor onto the respective bar.
A second possibility is scaling according to the nominal value. Using this type of
representation, the individual harmonics are shown in their effective amplitude. This type
of representation is particularly suited for analyzing the load current if you specify the
nominal value of the cable or the transformer as the nominal value of currents. All three
phase loads can be seen immediately.

Current Cumulative Frequency (A Only)

The graphical analysis of the cumulative frequency is a well-arranged statistical form of
representation of the analysis of harmonics. The stacked bar chart principle is the same as
in the Graphical summary analysis.
The harmonics of the phase currents and of the Neutral currents are presented graphically
in relation to the appropriate nominal current:
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