3�5�13�- MEASURING SINGLE-PHASE NETWORKS, PHASE TO PHASE, WITH A 2-WIRE CONNECTION,
CVM-C10-ITF, CVM-C10-MC AND CVM-C10-mV MODELS�
Measurement system:
Power
Supply
V
L1
V
L2
L1
L2
POWER SUPPLY
INPUTS
A
(+)
B
(-)
GND
RS485
S1
S2
S1
S2 S1
S2
L1
P1
P2
L2
L3
300V ~
Ph-N
Ph-Ph
520V ~
N
V
L3
L2
V
L1
V
P1
P2 P1
P2
I1 I2
OUTPUTS
Rc R2 R1
Tc T2 T1
S0- S0+ S0+
V
L1
V
L2
a
b
A
B
S1
S2
P1
P2
LOAD
Figure 16: Measuring Single-Phase Networks, phase to phase, with a 2-wire connection, CVM-C10-ITF, CVM-C10-MC and CVM-C10-
mV models�
(1)
Note:
Do not connect MC current transformers to ground.
CVM-C10-ITF
model:
The transformer secondary value must be 5A or 1A
CVM-C10-MC
model:
The MC transformer secondary value is set to 0.250 A (fixed value)
CVM-C10-mV
model:
The transformer secondary value must be 0.333 V
(1)
27
Instruction Manual
CVM-C10
