ABB SACE Emax 2 Series Operating Instructions Manual page 129

Low voltage air circuit-breaker
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Over V Th and Under V Th Certain counters relating to the sequence measurements are available in the Counters - Day - 1 and
V microinterr. (Interruption) The V microinterr counter should be understood as reduction of the RMS value of the line-to-line voltage
126 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Counters - Cumulative submenus:
Counters
Description
Counts the number of times that the average value of the positive sequence
(in the set direction of rotation of the phases: 1-2-3) or negative sequence (in
Over V Th
the set direction of rotation of the phases: 3-2-1) exceeds the V Threshold High
threshold. The count refers to the reference menu interval (previous day or
cumulative)
Counts the number of times that the average value of the positive sequence
(in the set direction of rotation of the phases: 1-2-3) or negative sequence (in
Under V Th
the set direction of rotation of the phases: 3-2-1) falls below the V Threshold
Low threshold. The count refers to the reference menu interval (previous day or
cumulative)
Additional List
Counters (Over Voltage) Description
Last time stamp
Last value
Actual number of O.
Actual [day -2 ... day -7]
number of O.
Counters (Under Volta-
ge)
Last time stamp
Last value
Actual number of O.
Actual [day -2 ... day -7]
number of O.
below the V microinterr. Th set threshold for less than 40 ms (short time voltage sag).
The counter is available in the two submenus Counters - Day - 1 and Counters - Cumulative (previous day
or cumulative)
NOTE: Since the counter is based on the RMS value calculation, two rapid voltage sags of
equal duration may be evaluated differently, depending on when they occur:
Drop detected
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Additional List
Counters (Interrup-
Description
tions)
Last instant
Date and time of last recording of the V microinterr counter
Last value
Value of last sag below the V microinterr [V] threshold
Value of last sag below the V microinterr [ms] threshold
Last duration
Actual number of I.
V microinterr count for the current day
Actual [day -2 ... day -7]
V microinterr count of the last seven days of activity, calculated using the
number of I.
internal clock of the unit
Date and time of last recording of the Over V Th counter
Value of the last swell above the Over V Th [V] threshold
Over V Th count for the current day
Over V Th count of the last seven days of activity, calculated using the
internal clock of the unit
Description
Date and time of last recording of the Under V Th counter
Value of the last sag below the Under V Th [V] threshold
Under V Th count for the current day
Under V Th count of the last seven days of activity, calculated using
the internal clock of the unit
ABB | SACE Emax 2
Drop not detected
t
Ekip Touch - Measurements
5 - Network Analyzer

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