ABB RELION SMU615 Applications Manual page 36

Merging unit variants
L1
L2
L3
Figure 14: Connection diagram for application configuration B with CT and VT
inputs
36
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
X110
1
BI 1
2
BI 2
3
BI 3
4
BI 4
5
6
BI 5
7
BI 6
8
BI 7
9
BI 8
10
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
1MRS758580 C
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
X110
HSO1
15
16
HSO2
19
20
HSO3
23
24
SMU615
Application Manual