MainsPro, SW version 1.4, ©ComAp – January 2013
MainsPro Reference Guide
Note:
Please note, that in order to fulfil the requested accuracies of the unit, it is necessary that the voltage
is always present at the terminals U
A
with the same frequency as on the other terminals. If this is not
fulfilled, even if the voltages on the measurement inputs U
B
and U
C
are within green area, they will not
be evaluated accurately!
Voltage measurement
Voltage measurement accuracy is 1% of the nominal value at frequency 50 Hz ± 10% and
temperature 25°C.
The accuracy is 1,5% within the complete temperature range and in the green operational
area. See the Operating area.
Maximum reaction time for voltage failures (in case of the delay set to 0,00 s) is 2 periods of
measured voltage + 15 ms. This is valid at nominal frequencies 50 Hz ± 10% and 60 Hz ±
10%.
Frequency measurement
Frequency measurement is 0,1 Hz in the complete green operating area.
Maximum reaction time for frequency failures (in case of the delay set to 0,00 s) is 75 ms. This
is valid in complete green operating area.
Time delays accuracy
The unit allows to set the time delays with step 10 ms.
The maximum tolerance of the unit timing is ≤3% ± 15ms.
Loss of Mains reaction times
Reaction time of Vector shift protection is 1,5 period of measured signal + 15 ms
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