ABB RELION RET670 - Page 95

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20
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22
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24
13
14
15
16
17
18
A
AI 07 (I)
AI 08 (V)
AI 09 (V)
AI 10 (V)
AI 11 (V)
AI 12 (V)
IED
B
C
66
3
110
3
kV
V
1
3
2
66
3
110
3
kV
V
66
3
110
3
kV
V
#Not used
5
ANSI06000599-2-en.vsd
SMAI2
BLOCK
^GRP2_A
TYPE
AI3P
AI1
AI2
AI3
AI4
AIN
^GRP2_B
^GRP2_C
^GRP2N
4
ANSI06000599 V2 EN-US
Figure 21: A Three phase-to-ground connected VT
L1
IED
L2
132
2
110
2
kV
V
1
3
2
132
2
110
2
kV
V
IEC16000140-1-en.vsdx
4
SMAI2
BLOCK
^GRP2L1
^GRP2L2
^GRP2L1L2
^GRP2N
AI2P
AI1
AI2
AI3
AI4
AIN
5
IEC16000140 V1 EN-US
Figure 22: A two phase-to-earth connected VT
1MRK 504 163-UUS A Section 4
Analog inputs
Transformer protection RET670 2.2 ANSI 89
Application manual