ABB RED650 Applications Manual

4.2.4.3 Examples on how to connect a three phase-to-earth connected VT to
the IED
SEMOD55055-87 v9
Figure
17 gives an example on how to connect a three phase-to-earth connected VT
to the IED. It gives an overview of required actions by the user in order to make
this measurement available to the built-in protection and control functions within
the IED.
For correct terminal designations, see the connection diagrams
valid for the delivered IED.
L1
IED
L2
L3
66
3
110
3
kV
V
1
3
2
66
3
110
3
kV
V
66
3
110
3
kV
V
.
#Not used
5
IEC06000599-4-en.vsdx
4
SMAI2
BLOCK
REVROT
^GRP2L1
^GRP2L2
^GRP2L3
^GRP2N
AI3P
AI1
AI2
AI3
AI4
AIN
IEC06000599 V4 EN-US
Figure 17: A Three phase-to-earth connected VT
1MRK 505 393-UEN B Section 4
Analog inputs
Line differential protection RED650 2.2 IEC 57
Application manual

ABB RED650 Specifications

General

Brand	ABB
Model	RED650
Category	Protection Device
Language	English