Siemens 7SR51 Device Manual page 63

Parameter: VT1/2/3 Config
•
Default setting: Van, Vbn, Vcn
This setting provides the device with the correct voltage inputs i.e. provides inputs configuration appro-
priate to the switchgear VT connections. The VT connections and required settings are illustrated in
Figure 3-7.
Note that the switchgear VT connection may affect the functionality that can be used in the device on the
system e.g. The VT1/2/3 configuration Va, Vb, Vc in
be measured and so functions requiring this quantity cannot be used when this VT configuration is
selected.
[lo_7SR5_VTConnections, 1, en_US]
Figure 3-7
Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019
Illustration of VT Configuration Settings and VT Connections (Typical)
Figure 3-7 does not allow zero sequence voltage V
Device Functionality
3.3 CT and VT Inputs
to
0
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