ABB RELION REX640 - Page 1929

N
VT
N
CT
X4
1
2
57-240
0.2/1A
S1
P1
P2
S2
Positive
Current
Direction
L1 L2 L3
SIM1902
X1
1
2
7
8
DFF
Sensor I
Sensor U
DFF
X2
1
2
7
8
DFF
DFF
X3
1
2
7
8
DFF
DFF
3
4
Sensor I
Sensor U
Sensor I
Sensor U
s1
s2
s1
s2
s1
s2
(for residual
current only)
Figure 1026: SIM1902 module (VT primary connection phase-to-earth)
1MRS759142 F
Protection relay's physical connections
REX640
Technical Manual
1929