ABB RELION RET670 Applications Manual page 99

1MRK 504 163-UUS A
6.6 kV
3
110 V
3
6.6 kV
3
110 V
3
ANSI06000601 V2 EN-US
Figure 24: Open delta connected VT in high impedance grounded power system
Transformer protection RET670 2.2 ANSI
Application manual
A
B
C
6.6 kV
3
110 V
3
IED
2
13
AI 07 (I)
14
15
AI 08 (V)
16
17
AI 09 (V)
18
19
1
AI 10 (V)
20
21
AI 11 (V)
+3Vo
22
23
AI 12 (V)
24
Section 4
Analog inputs
SMAI2
BLOCK
3
^GRP2_A
# Not Used
^GRP2_B
# Not Used
^GRP2_C
# Not Used
^GRP2N
TYPE
4
ANSI06000601-2-en.vsd
5
AI3P
AI1
AI2
AI3
AI4
AIN
93