ABB RET670 - Page 55

For correct terminal designations, see the connection diagrams valid for
the delivered IED.
Protected Object
A B C
IED
I
N
P
2
4
ANSI11000029-3-en.vsd
3
C
T
1
0
0
0
/
1
a)
b)
INS
INS
(+)
(+)
(-)
(-)
(+)
(-)
1
SMAI_20_2
BLOCK
REVROT
^GRP2_A
^GRP2_B
^GRP2_C
^GRP2_N
AI3P
AI1
AI2
AI3
AI4
AIN
ANSI11000029 V3 EN
Figure 13: Connections for single-phase CT input
1MRK504116-UUS C Section 3
IED application
49
Application manual