ABB SACE Tmax XT7 Operation And Maintenance Manual page 179

Remote configurations Additional parameters can be accessed via the service connector (via Ekip Connect) or via a system bus
177 | © 2020 ABB | 1SDH001821A1002 - ECN000135670
Continued from the previous page
Parameter Description
Secondary voltage of the transformer; the value is given as absolute value
Secondary voltage
(Volts) and can be set within the range: 100 V to 120 V in variable steps.
Concatenated Ref Line-to-line voltage entering the module among the 3 installation voltages U12
Defines the rest status of the contact with synchronism not present
Contact Type
between: open (NO) and closed (NC)
(1)
parameter not available with busbar active and Auto deadbar detect= Manual
(2)
with dead busbar and configuration: Reversed, the roles of the internal and external voltages are reversed
(3)
10% hysteresis is applied to the minimum voltage condition: once reached, the condition is lost if the
voltage drops below 90% of the set limit
(4)
parameter not available with dead busbar and Auto deadbar detect= Manual
NOTE: all the thresholds have ±10% tolerance with the exception of:
• Voltage Delta; the tolerance is the higher value between: ±10% of the set threshold and 0.5%
Un (with Un > 220 V) or 1% Un (with Un ≤ 220V)
• Frequency Delta; the tolerance is the higher value between ±10% of the set threshold and 0.02
Hz
communication:
Parameter Description
Activates (ON) or deactivates (OFF) frequency control for synchronism
Frequency
check assessment
Phase check Activates (ON) or deactivates (OFF) phase control for synchronism assessment ON
Activates (YES) or deactivates (NO) circuit-breaker open status control for
synchronism assessment
Evaluate CB
status NOTE: fourth synchronism condition with busbar active; second
synchronism condition with dead busbar
With active busbar, minimum time within which the Delta Phase condition must
be obtained
The value is given in seconds and can be set within the range: 100 ms to 3 s,
in 10 ms steps
Minimum
NOTE: this is not a synchronism condition, but a parameter allowing a
matching time
discrimination to be made between correct and incorrect combinations of
the Delta Frequency and Delta Phase conditions. Owing to worst case
latencies, the time that effectively elapses before synchronism is
recognized may be longer than the set time (approx. 20 ms)
ABB | SACE Tmax XT
External electronic accessories | 12 - Ekip Synchrocheck
Default
100 V
NO
Default
ON
NO
100 ms