--
ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY
QNA-303 --
Page
20
•
Period of voltage sliding window:
To carry out the calculation of the
average, maximum and minimum voltage, the
QNA-303
obtains one value
each second. This instantaneous value corresponds to the average of V
rms
values which have been calculated within the sliding window defined by the
user (voltage time constant). If this period is set to 1 s, then the
instantaneous value equals the V
rms
value.
•
Period of frequency sliding window:
To carry out the calculation of the
average, maximum and minimum frequency, the
QNA-303
obtains one
value each second. This instantaneous value corresponds to the average
of frequency values which have been calculated within the sliding window
defined by the user (frequency time constant). If this period is set to 1 s,
then this value equals the instantaneous frequency.
