8-13
CH 8/ Reports
Event Satistics
EN50160
DISDIP
The EN50160 DISDIP (distribution of dips) table is based upon the event statistics
calculated by EN50160. It includes the UNIPEDE DISDIP Statistics and the table for
Transient Overvoltages. UNIPEDE DISDIP data is collected and saved on a weekly
basis with the counts reset as the final save occurs. If additional data is detected for an
evaluation period after that period has been saved, that internal data is retrieved and
updated.
UNIPEDE
DISDIP
Statistics table
RMS variations shown in the UNIPEDE DISDIP table is a filtered version of the Event
list. The DISDIP table includes those events of rms variation type (sags, swells, and
interruptions). From the Compliance Statistics bar chart screen on page 8-3, press
DISDIP. The UNIPEDE DISDIP Statistics table will appear as shown below.
RMS Event Count: The table shows rms variations of specified range of magnitude and
duration, also called bins. For example, an rms variation with a magnitude of 80-90%
of nominal and 1-5 cycles in duration is one bin, whereas 80-90% and 10-30 cycles is
another, 70-80% and 10-30 cycles is another, and so on. Each time that the
characteristics of an rms variation match the criteria of the bin, the counter is
incremented. RMS phenomena are typically found in bin groupings such as:
• DIPS - classified in 5 Magnitudes x 8 Durations
• Interruptions - classified in 1 Magnitude x 8 Durations
• Temporary Overvoltages - classified in 5 Magnitudes x 8 Durations
Continued on next page
Display table for Transient
Overvoltage (p. 8-14)
MARK473
Display DISDIP 3D
Graph (p. 8-14)
www.
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1.800.561.8187
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