ABB SACE Tmax XT5 Operation And Maintenance Manual page 169

Remote configurations Additional parameters can be accessed via the service connector (via Ekip Connect) or via a system bus
Measurements The specific measurement area will activate in the Measurements - Synchrocheck menu if the Ekip
167 | © 2019 ABB | 1SDH002039A1002 - ECN000093027 - Rev. A
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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
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
Evaluate CB synchronism assessment
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)
Synchrocheck module is detected correctly by Ekip Touch.
Measurement Description
• Ok = Synchronism conditions fulfilled
Module
• Not Ok = Synchronism conditions not fulfilled or function disabled
• Ok = Synchronism condition regarding frequencies fulfilled
• Not Ok = Synchronism condition regarding frequencies not fulfilled or synchronism
Frequency function disabled, or frequencies outside measuring range limits.
• --- = Synchronism condition regarding frequencies not available (example: for
operation with dead busbar)
• Ok = Synchronism conditions regarding voltages fulfilled.
• Not Ok = Synchronism conditions regarding voltages not fulfilled or synchronism
Voltage
function disabled
• Ok = Synchronism condition regarding phase difference fulfilled
• Not Ok = Synchronism condition regarding phase difference not fulfilled or
synchronism function disabled, or frequencies outside measuring range limits
Phase
• --- = Synchronism condition regarding phase difference not available (example: for
operation with dead busbar)
• Voltage measured by Ekip Synchrocheck given in Volts
• .... = measurement DC or less than 1 VAC
Ext Side Voltage (1)
• --- = measurement not available (example: because synchronism function is
disabled)
ABB | SACE Tmax XT
Default
100 V
NO
Default
ON
NO
100 ms
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External accessories | 14 - Ekip Synchrocheck