Circutor CVM144 Series Manual de usuario Pagina 18

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----- Supply network analyzer CVM-144 ------ User's manual --- Page No. 17
d.- Three-phase network - 3 wires (2 P.T. and 2 C.T.):
S1
P1
S2
P2
L1
L2
L3
S1
P1
S2
P2
VL3
VL2
VL1
1 2 3 4 5 6 7 8 9 10 11 12
A.C. POWER SUPPLY
b
B
a
A
b
B
a
A
b
B
a
A
PowerSupply (SDC Model)
Terminal
Description
+ V d.c.
- V d.c.
1
2
IMPORTANT REMARK! If power = -0.01 is shown for any of the phases
(codes 03, 09 and 15) and voltage and current are not zero for this phase, check out
following points:
- Assure that L1, L2 and L3 phases coincide in voltage and current.
- Correct polarity? Reverse the current transformer placed at this phase.
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