[losyn001-100611-01.tif, 2, en_US]
Figure 8-58
Overview of the Stage Logic
Stage Control
The normal stage control is used for a synchronization stage (see Figure 8-58).
Note the following special features:
•
As soon as there is a synchronization function available in the device, the measured values are calculated
and displayed. One stage must be activated for calculating all Delta settings. It is not necessary to start
the stage for this purpose.
•
If all synchronization stages are deactivated within the function, closure via the control will no longer be
possible, as none of the stages can generate an closing release. If the synchronization function is deleted,
the circuit breaker is no longer regarded as subject to compulsory synchronization. In this case, it is
possible to activate via the control without synchronization.
•
If more than one synchronization stage is switched on, then the >Selection signal must be active for
exactly one stage, so that it can be activated via the controls.
You can block the entire synchronization stage via the binary signal >Block stage. A started process is
completed and the entire stage reset after blocking. The stage must be restarted to initiate a new switching
procedure. The blocking only affects the test process for the closing conditions. The measured values are still
calculated and displayed.
Control Functions
8.4 Synchronization Function
1132 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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