Page 164 - MCCB-XT2-XT4

Continued from the previous page ABB | SACE Tmax XT
Parameter Description Default
Secondary voltage of the transformer; the value is given as absolute
Secondary voltage value (V) and can be set within the range: 100 V to 120 V in variable 100 V
steps.
Line-to-line voltage entering the module among the 3 installation
Concatenated Ref U12
voltages
Defines the rest status of the contact with synchronism not present
Contact Type NO
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 ≤ 220 V)
• Frequency Delta; the tolerance is the higher value between ±10% of the set threshold and
0.02 Hz

Remote configurations Additional parameters can be accessed via the service connector (via Ekip Connect) or via a system bus
communication:

Parameter Description Default
Frequency Activates (ON) or deactivates (OFF) frequency control for synchronism
check assessment ON
Activates (ON) or deactivates (OFF) phase control for synchronism
Phase check ON
assessment
Activates (YES) or deactivates (NO) circuit-breaker open status control for
Evaluate CB synchronism assessment
status NOTE: fourth synchronism condition with busbar active; second NO
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
matching a discrimination to be made between correct and incorrect 100 ms
time
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)

162 | © 2022 ABB | 1SDH002031A1002 - ECN000212994 External electronic accessories | 14 - Ekip Synchrocheck