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Voltage Connections
The 7RW80 provides two voltage inputs for connecting the voltage V
the voltage V
(see the following examples).
2
If two phase-to-phase voltages are open delta-connected to side V
voltage must be connected and configured for the additional voltage V
To correctly compare the phase-to-phase reference voltage V
to know the connection type of voltage V
6123).
For the device to perform the internal conversion to primary values, the primary rated transformer voltage of
the measured quantity V
is located between the system parts to be synchronized.
[sync-mehrphasig-anschl-061116, 1, en_US]
Figure 2-26
If only phase-to-ground voltages are available, the reference voltage V
former and the additional voltage V
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018
. That is the task of parameter CONNECTIONof V2 (parameter
2
must be entered via parameter 6125 VT Vn2, primary, primary if a transformer
2
Phase-to-phase voltage connection (open-delta connection)
to the third voltage transformer.
2
and one voltage input for connecting
1
as reference voltage, a phase-to-phase
1
to be synchronized.
2
with the additional voltage V
1
is connected to the first voltage trans-
1
Functions
2.7 Synchrocheck
, the device needs
2
87
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