ABB RET670 Applications Manual page 55

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