ABB SACE Emax E1.2 Operating Instructions For The Design Engineer page 197

191 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
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Parameter Values
Minimum 100...3000 ms
matching time steps of 10 ms
(4)
(1)
The precision of measurement of the voltage difference is ± 10%, except with the value of parameter equal
to 0.02 Un, with which the precision is ± 20%.
(2)
With a dead bus and "Reverse" configuration, the roles of the internal and external voltages are reversed.
(3)
On the condition of minimum voltage, a hysteresis of 10 % is applied: once reached, the condition is lost if
the voltage drops below 90 % of the set limit.
(4)
Parameter available only with the Ekip Connect.
(5)
If the Frequency Check is disabled (OFF), the Phase Check is also Off, but not vice versa.
The following table shows the path from the display get the measurements related to the synchronism
function:
...
Harmonic dist.
Measurements
Ekip Synchrocheck
Network Analyzer
...
The page containing a summary of the measurements of the Ekip Synchrocheck module can also be accessed
from the Histograms page. The measurements in this page are:
• Green if the relative synchronism condition has been achieved.
• Red if the relative synchronism condition has not been achieved or the function is disabled.
• White if the measurements are not available.
The measurement summary page can be set as HOME.
The following table shows the measurements related to the synchronism function:
Measurement Description
• Ok = Synchronism conditions met.
Module
• Not Ok = Synchronism conditions not met or synchronism function disabled.
• Ok = Synchronism condition regarding frequencies met.
• Not Ok = Synchronism condition regarding frequencies not met, or synchronism
Frequency function disabled, or frequencies out of the measuring range limits.
• --- = Synchronism condition regarding frequencies not available (example: owing
to operation with dead bus).
• Ok = Synchronism condition regarding voltages met.
Voltage • Not Ok = Synchronism conditions regarding voltages not met or synchronism
function disabled.
• Ok = Synchronism condition regarding phase difference met.
• Not Ok = Synchronism condition regarding phase difference not met, or
Phase synchronism function disabled, or frequencies out of the measuring range limits.
• --- = Synchronism condition regarding phase difference not available (example:
owing to operation with dead bus).
Default Description
With live bus, minimum time in which the "Phase Delta"
condition must be met: it is not a synchronism function but
a parameter allowing a discrimination to be made between
correct and incorrect combinations of the "Frequency
100 ms
Delta" and "Phase Delta" conditions. Owing to latencies
in the worst case, the time that effectively elapses before
synchronism is recognized may be longer than the set time
(approx. 20 ms).
Electronic accessories | 4 - Ekip Synchrocheck module
ABB | SACE Emax 2
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