CIRCUTOR CVM-B Series - Manual (Page 16)

3�4�2�- Three-phase network measurement with a 3-wire connection�
Measurement system:
Secondary winding of the current transformer:
(MC1 type transformer)
Power
Supply
V
L1
V
L2 V
L3
L1
L2
L3
N V
L3 L2
V
L1
V
V
L1
V
L2
V
L3
a
b
A B
a b
A B
S1 S2 S1 S2 S1 S2
L1
P1 P2
L2 L3
P1 P2 P1 P2
S1 S2
LN
P1 P2
N V
REF REF
S1 S2
P1 P2 S1
S2
P1 P2 S1 S2
P1 P2
POWER SUPPLY
~ ~
+ -
LOAD
figure 5: Three-phase measuring with a 3-wire connection (transformer secondary: /1A, /5A or MC1 (/0�250))�
The MC1 transformer secondary value is set to 0.250 A
16
CVM-B100 - CVM-B150
Instruction Manual