Data Sheet

Summary
The Summary section compares the key power quality parameters to pre-defined levels.
It consists of three elements: Overview, Events and Harmonics.
The overview summarizes the overall power quality for the chosen reporting period in six
classes: frequency, voltage variations, voltage harmonics, unbalance, flicker and events.
The total number of readings for each of these variables is compared to the 100% limits. A
different percentage of the total number of readings (typically 95%) is also compared to specific
limits. This allows a power quality survey according to international or local standards (e.g.
EN50160).
The summary indicates the number of values within the limit and the extreme value measured
during the selected period.
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