Circutor CVM-C11 - 3�5�8�- Measuring Three-Phase Networks with a 3-Wire Connection and Transformers with an Aron Connection, CVM-C11-MC-In-485-Ict2 Model

3.5.8.- MEASURING THREEPHASE NETWORKS WITH A 3WIRE CONNECTION AND TRANSFORM
ERS WITH AN ARON CONNECTION, CVMC11MCIN485ICT2 MODEL
Measurement system: 3-ArON
UL1
UL2
UL3
L1
L2
L3
UL1 UL2 UL3
a b
A B
a
b
A B
S1
S2
P1 P2
S1
S2
P1
P2
Alimentación Auxiliar
Power Supply
CARGA /LOAD
POWER SUPPLY OUTPUTS INPUTS RS-485
A1(+)
A2(-)
R01 R02 D01 D02 DI1 DI2
A(+) B(-)
IL1
IL2
IL3
IN
S1
S2
S1 S1
S1
S2 S2 S2
P2
P1
P2
P1
P2P1 P2P1
U
L1
U
L2
U
L3
N
U
L1
U
L3
U
L2
A1(+) A2(-)
ROC
DOC DIC
Figure 11: Three-Phase measuring with a 3-wire connection and transformers with an ARON connection (CVM-C11-MC-IN-485-
ICT2).
Note: Do not connect MC current transformers to ground.
The MC transformer secondary value is set to 0.250 A (fixed value).
21
Instruction Manual
CVM-C11