ABB SACE Tmax XT2 User Manual page 110

Spikes The Spikes counter is to be understood as the increase of the RMS value of the line-to-line
voltage above the set V Spike Threshold for a duration of less than 40 ms (increase in voltage of
short duration).
The counter is available in the two sub-menus Counters - Day -1 and Counters - Cumulative
(previous day or cumulative)
Supplemental list
Counters (Spikes)
Last time stamp
Last value
Last duration
Actual number of S.
Actual [day -2 ... day -7]
number of S.
In the Counters - Day -1 and Counters - Cumulative submenus some counters for sags are
Sags
available:
Counters
Sag.Short
Sag.Middle
Sag.Long
The count refers to the interval of the menu of reference (previous day or cumulative)
Supplemental list
Counters (Sag -short-)
Last time stamp
Last value
Last duration
Actual number of S.
Actual [day -2 ... day -7]
number of S.
1SDH002031A1002 ECN000092998
NOTE: Since the counter is based on the calculation of the RMS value, it is possible
that two rapid voltage increases of equal duration may be evaluated differently
depending on their amplitude:
Figure 28
Description
Date and time referred to the last Spikes counter record
Value of the last increase above the Spikes threshold [V]
Duration of the last increase above the Spikes threshold [ms]
Count of Spikes referring to the current day
Count of Spikes detected in the last seven days of activity, calculated
using the unit's internal clock
Description
Counts the times that any line-to-line voltage drops below the V sag Th Short
threshold for longer than V sag dur Short
Counts the times that any line-to-line voltage drops below the V sag Th Middle
threshold for longer than V sag dur Middle
Counts the times in which any line-to-line voltage drops below the threshold V sag
Th Long for longer than V sag dur Long
NOTE: since it is possible for an event to fall within more than one type, only the counter
related to the highest applicable type is increased (Long > Middle > Short)
Description
Date and time referred to the last Sag.Short counter record
Value of the last sag below the Sag.Short threshold [V]
Duration of the last sag below the Sag.Short threshold [ms]
Count of Sag.Short referring to the current day
Count of Sag.Short detected in the last seven days of activity,
calculated using the unit's internal clock
Rev. B
SACE Tmax XT2 – XT4 | 110