
3.4.- CONNECTION DIAGRAM
3�4�1�- Measuring Three-Phase Networks with a 4-wire connection, CVM-C10-ITF and
CVM-C10-mV model�
Measurement system:
Power
Supply
V
L1 VL2
VL3 N
L1
L2
L3
N
POWER SUPPLY
INPUTS
A(+) B(-)
GND
RS485
S1 S2
S1 S2
S1 S2
L1
P1 P2
L2
L3
300V
~
Ph-NPh-Ph
520V
~
NV
L3L2
V
L1
V
P1 P2
P1 P2
I1 I2
OUTPUTS
Rc R2 R1 Tc T2 T1
S0-
S0+ S0+
VL1 VL2 VL3
a
b
A B
a
b
A B
S1 S2
P1
P2
S1 S2
P1
P2
S1 S2
P1
P2
LOAD
Figure 3: Three-Phase measuring with a 4-wire connection, CVM-C10-ITF and CVM-C10-mV model�
12
CVM-C10
Instruction Manual
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