ABB RED615 Technical Manual page 422

Section 4
Protection functions
416
L1 L2 L3
P1
S1
S2
P2
P1
S1
S2
P2
GUID-66D375DD-BF49-43C5-A7B5-BFA2BEAD035C V2 EN
Figure 221: Connection of current transformers of Type 2 and example of the
currents during an external fault
1YHT530004D05 D
X120
7 1/5A
IL1
8 N
9
1/5A
IL2
10
N
11
1/5A
IL3
12
N
X120
1 1/5A
IL1B
2
N
3 1/5A
IL2B
4
N
5
1/5A
IL3B
6
N
615 series
Technical Manual