ABB ret650 - Page 69

1
L1
IED
L2
L3
138
3
115
3
kV
V
+3Uo
138
3
115
3
kV
V
138
3
115
3
kV
V
IEC06000602-4-en.vsdx
# Not Used
# Not Used
# Not Used
SMAI2
BLOCK
REVROT
^GRP2L1
^GRP2L2
^GRP2L3
^GRP2N
AI3P
AI1
AI2
AI3
AI4
AIN
2
3
4
5
IEC06000602 V4 EN-US
Figure 22: Open delta connected VT in low impedance or solidly earthed power system
1MRK 504 169-UEN A Section 4
Analog inputs
Transformer protection RET650 2.2 IEC 63
Application manual