ABB RELION REX640 - Page 1928

N
VT
N
CT
X4
1
2
57-240
0.2/1A
S1
P1
P2
S2
Positive
Current
Direction
L1 L2
L3
SIM1901
X1
4
5
7
8
DFF
Sensor I
Sensor U
DFF
X2
DFF
DFF
X3
DFF
DFF
3
4
Sensor I
Sensor U
Sensor I
Sensor U
s1
s2
s1
s2
s1
s2
(for residual
current only)
4
5
7
8
4
5
7
8
Figure 1025: SIM1901 module (VT primary connection phase-to-phase)
Protection relay's physical connections
1MRS759142 F
1928 REX640
Technical Manual