ABB REG670 - Section 14 Authorization; 14.2 Principle of operation

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
Figure 25: A Three phase-to-earth 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
Figure 26: A two phase-to-earth connected VT
1MRK 502 071-UEN - Section 4
Analog inputs
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062 83
Application manual