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

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Users Manual
In the EN-50160 regulation there is a 95 % limit value for all measured
parameters. That is, 95 % of all measured values during one week must be
below this limit value. For some parameters (frequency and slow voltage
variations) there is a 100 % limit value. That is, 100 % of all measured
values must be below this limit value.
There are thd V bars for thd of voltages of each phase. The bars "Flicker" show the long
term values, Plt.
Stacked Bar Charts from Measured Values
The values measured during one week are put in increasing order together with the limit
value line.
Maximum value and 95 % value are benchmark figures for the stacked bar chart. It can
easily be seen which measured values exceed the limits defined in the limit level file and
which reserves are still available.
Select Print>Print document menu to print the document.
For voltage variations there are two independent bars:
The red bar is before the blue one. The standard is met if the red and blue
bars are always below the limit value line.

Voltage Cumulative Frequency (A Only)

The graphical analysis of the cumulative frequency is a well arranged statistical form of
representation for the analysis of harmonics. The stacked bar chart principle is the same
as the Graphical summary analysis.
1. Select Analysis>Cumulative frequency. The Voltage Cumulative Frequency screen
2. For the analysis of the harmonics, select "Scaling according to limit value". This is
30
There are any reserves available
For the red (95 %) bar the limit value line represents the 95 % limit
value (for example –10 % as per EN 50160)
For the blue (MAX) bar the limit line represents the 100 % limit
value (for example –15 % as per EN 50160)
appears.
also the selected standard scaling.
Note
Note