•
Frequency value f1 and f2
•
Differences of Voltage, Frequency and Angle
•
Phase Rotation U1 and U2
•
The active synchronizing functional group
The models featuring a four-line display have pre-defined default displays which show in different combina-
tions the above mentioned measured values comprised on one display (see Appendix
).
Synchrocheck
The synchrocheck function is used for example for additional enabling on manual close or manual synchro-
nizing for safety reasons.
In this mode the variables ΔU, Δf and Δ
ϕ
are checked before connecting both power system components.
When the setting values are reached an enabling command is issued for the duration when all conditions for
synchronization are fulfilled, but at least for an adjustable time period.
The corresponding logic is shown in
2.2.1.7
Functions
2.2 Paralleling Functions
SIPROTEC 4, 7VE61 and 7VE63, Manual
43
C53000-G1176-C163-3, Edition 10.2017
Summary of Contents for SIPROTEC 4 7VE61
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