Siemens SICAM A8000 Series - 3-Phase Voltage, 3-Phase Current

Standard I/O Modules
SICAM A8000 Series, SICAM I/O Modules Unrestricted 61
DC8-012-2.06, Edition 09.2019
2.8.6.3.1 3-Phase Voltage, 3-Phase Current
Through the current inputs I1, I2/IN, I3 the corresponding phase currents are measured. The
value IN is calculated.
This configuration is used for solidly grounded networks. In this configuration, the module
works also as a power meter.
Example: Middle-voltage network
1 2
3
4 5
6
7
8 9
10
X1
AI-8510
225 mV
225 mV 225 mV
P2P1
P2
P1
P2
P1
S2S1
S2
S1
S2
S1
1 A
1 A
1 A
1
2
3
4 5
6
X1
1
2
3
4 5
6
7
8 9
10
I1_P
I1_N
I2_P
I2_N
I3_P
I3_N
DNC
I3- DNC
DNC
I1+ I1- I3+
CM-8820
X2
FE Shield
I2-/IN- I2-/IN+
1 2
3
4 5
6
7
8 9
10
X1
CM-8820
225 mV
225 mV 225 mV
BABA
B
A
baba
b
a
2
0 kV
20 kV
20 kV
100 V/√3
100 V/√3
100 V/√3
N
L3
L2
L1
AI-8510
X2
1 2
3
4 5
6
7
8 9
X1
1 2
3
4 5
6
7
8 9
10
DNC
N N N DNC
DNC
I3- DNC
DNC
I1+ I1- I3+ I2-/IN- I2-/IN+ U3 U2 U1
FE Shield
CC Shield