VAMP Ltd Power monitoring unit
Technical description
VAMP 260
VM260.EN004 Vamp 24h support phone : +358 (0)20 753 3264
15
Figure 2.2.9-2. Short voltage sag that is recognized
Setting parameters of the voltage sag measurement
function:
Parameter: Value: Unit: Default: Description:
U1< 10.0…120.0 % 64 Setting value
Period 8h;
Day;
Week;
Month
- Month
Length of the observation
period
Date - - Date
Time - - Time
Measured and recorded values of voltage sag measurement
function:
Parameter: Value: Unit: Description:
Voltage LOW;
OK
- Current voltage status
Measured
value
U1 %
Measured positive sequence
voltage
Count -
Number of voltage sags
during the current
observation period
Prev -
Number of voltage sags
during the previous
observation period
Total s
Total (summed) time of
voltage sags during the
current observation period
Recorded
values
Prev s
Total (summed) time of
voltage sags during the
previous observation period
2.2.10. Demand values
The device calculates a 15 min average value of all the
currents, voltages and powers. This value is a running average,
which is updated once a minute. The minimum and maximum
of the demand values are recorded.
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