ABB SACE Tmax XT7 Operation And Maintenance Manual page 123

Counters - introduction The main counters of the function are available in the Measurements – Network Analyzer menu, distributed
V Sequences and V 3s
Sequences
THD Current and THD Voltages The THD Current and THD Voltages submenus have the following counters:
121 | © 2020 ABB | 1SDH001821A1002 - ECN000135670
among several sections (page 36).
The extended list of all the measurements is available via Ekip Connect or by connecting to the bus system
NOTE: the Additional List item in the following paragraphs contains the additional counters
that are only present via Ekip Connect; the type of reference counter is given in the
heading of the additional tables
Submenus V Sequences and V 3s Sequences have the following counters:
Menu Parameter
V seq pos
V seq neg
V Sequences
Last V pos seq
Last V neg seq
V seq pos
V 3s Sequence V seq neg
Unbalance
Additional List
Counters (Sequences)
Last time stamp
Counters (Sequences)
Last value
Actual unbalance value
Last time stamp
Actual number of U.
Actual [day -1 ... day -7]
number of U.
Cumulative number of U.
NOTE: all measurements of unbalances (Not balanced and Unbalance value) saturate at
200%
Menu Counters
THD Current L1, L2, L3, Ne
THD Voltages U12, U23, U31
Description
Positive sequence of period in progress [V]
Negative sequence of period in progress [V]
Positive sequence of period preceding the one in progress [V]
Negative sequence of period preceding the one in progress [V]
Positive sequence calculated during the last three seconds [V]
Negative sequence calculated during the last three seconds [V]
Voltage unbalance calculated during the last three seconds [%]
Description
Date and time of last recording of the sequences
Description
Voltage unbalance relating to the period in progress [%]
Voltage unbalance relating to the period preceding the one in progress
[%]
Date and time of last recording of the unbalances
Counts the number of times that the average value of the ratio between
the positive on negative sequence (with direction of rotation 3-2-1) and
negative on positive sequence (1-2-3) exceeds the Unbalance V Th
threshold; the count refers to the actual day
Counters relating to the number of unbalances detected in the last
seven days of activity, calculated using the internal clock of the unit
Cumulative counter of all the unbalances detected by the unit (sum of
the other counters or to be increased also for the previous days?)
Description
Instantaneous harmonic distortion value of each current phase
Instantaneous harmonic distortion value of each line-to-line voltage
ABB | SACE Tmax XT
Ekip Touch - Measurements | 5 - Network Analyzer