Deif PPM 300 - Page 113

Figure 7.2 Example of busbar voltage transformer wiring
L1
L1
L2
L2
L3
L3
N
N
ACM3.1
L1
S1
S2
L2
S1
S2
L3
S1
S2
*
S1
S2
4
1
2
3
4
5
6
7
10
9
8
11
12
13
14
15
16
L1
L2
L3
V
GEN-L1
V
GEN-L2
V
GEN-L3
I
GEN-L1
I
GEN-L2
I
GEN-L3
Step-up
transformer
Voltage
transformer
(Busbar)
Voltage
transformer
(Generator)
Primary
Primary
Secondary
Secondary
GB
F
F
F
F
FF
S1
S2
S1
S2
S1
S2
G
INFO
Alternatively, you can ground the S1 side of the current transformers, instead of S2 as shown.
INSTALLATION INSTRUCTIONS 4189340909I UK Page 113 of 144