ABB ret650 - Page 64

L1
IED
L2
L3
13.8
120
kV
V
1
2
#Not Used
13.8
120
kV
V
.
5
IEC06000600-5-en.vsdx
4
SMAI2
BLOCK
REVROT
^GRP2L1
^GRP2L2
^GRP2L3
^GRP2N
AI3P
AI1
AI2
AI3
AI4
AIN
3
IEC06000600 V5 EN-US
Figure 20: A Two phase-to-phase connected VT
Where:
1) shows how to connect the secondary side of a phase-to-phase VT to the VT inputs on the
IED
2) is the TRM where these three voltage inputs are located. It shall be noted that for these
three voltage inputs the following setting values shall be entered:
VTprim =13.8 kV
VTsec =120 V
Please note that inside the IED only ratio of these two parameters is used.
Table continues on next page
Section 4 1MRK 504 169-UEN A
Analog inputs
58 Transformer protection RET650 2.2 IEC
Application manual