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[dwsynfn1-270213-01.tif, 1, en_US]
Figure 6-58
Connection and Definition
6.4.3
Connection
You can find examples for the synchronization of line and busbar in the following 2 figures.
an example for the synchronization of 2 busbars via bus coupler.
The synchronization function uses 2 voltages to check the connecting conditions: a voltage of the reference
side 1 (V1) as well as a voltage to be used as a reference on side 2 (V2). The reference voltage of side 1 is
designated in the synchronization function as V1
connected to the Sync. voltage 1 interface of the Circuit-breaker function group. The voltage to be set as
reference is designated with V2
Sync. voltage 2 interface of the Circuit-breaker function group. The assignment of the measuring points to
the interfaces of the Circuit-breaker function group can be configured, see chapter
in the
Device.
The selection of the voltages used for the synchronization depends on the device connection to the primary
system:
•
Connection of the primary system via 4 voltage inputs and hence use of a 1-phase and a 3-phase meas-
uring point
The voltage connected to the 1-phase measuring point is definitive here. If. for example, this is the
phase-to-ground voltage V
•
Connection of the primary system via 6 voltage inputs and hence use of two 3-phase measuring points
(Figure
6-60):
The phase-to-phase voltage V
You can connect both the phase-to-ground voltages and the phase-to-phase voltages to the device. The
possible interface connections are listed in the Appendix.
21
Do not confuse the designations V1 and V2 with the numbering of the voltage inputs V1 to V4
(Figure
6-60).
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
Structure/Embedding of the Function
21
. This is always the voltage of the measuring point that is connected to the
(Figure 6-59
and
Figure
6-61):
, the voltage V
A
of both sides is always used for the test.
AB
21
. This is always the voltage of the measuring point that is
is also used by the other side of the 3-phase measuring point.
A
Control Functions
6.4 Synchronization Function
Figure 6-61
2.1 Function Embedding
(Figure
6-59) and V1 to V8
shows
361
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