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11. PQ Configuration
11.3 Frequency
The frequency of the mains voltage is determined over a time window of 10 seconds in each case.
Limits
Two sets of limits are available.
For each, in addition to a minimum and maximum, there is also a period of time during which the limits must be observed before
violations occur.
The period is given in % of the selected observation period and the minimum and maximum in deviation from the nominal value.
11.4 Flicker
Flicker is visually perceptible change in luminosity of light sources.
A distinction is made between short term flicker Pst (10-minute value) and long term flicker Plt (2-hour value).
Limits
Limits can be defined for flicker (short and long term).
In addition, a period can be defined in which the limits must be observed before a violation occurs.
The time period is specified in % of the selected observation period.
* Variant with impulse current measurement expected to be available from Q4 - 2021
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