ABB RELION SMU615 Applications Manual page 33

1MRS758580 C
3.2 Connection diagrams
L1
L2
L3
Figure 11: Connection diagram for application configuration A with CT and VT inputs
SMU615
Application Manual
A
N
n
a
Positive
Current
Direction
P1
S1
S2
P2
P1 S1
S2
P2
SMU615
X120
1 60 -
210V
U1
2
N
60 -
3
210V
U2
4 N
60 -
5
210V
U3
6
N
2)
7
1/5A
IL1
8
N
9
1/5A
IL2
10
N
11
1/5A
IL3
12
N
13 0.2/1A
Io
14
N
X13
1)
Light sensor input 1
X14
1)
Light sensor input 2
1) Order selectable -Optional
2) The IED features an automatic short-circuit
X15
mechanism in the CT connector when plug-in
1)
Light sensor input 3
unit is detached
Merging unit variants
X100
+
1
U
aux
2
-
3
IRF
4
5
PO1
6
7
PO2
8
9
10
SO1
11
12
13
SO2
14
16
PO3
17
15
19
TCS1
18
20
22
PO4
21
23
TCS2
24
33