Amprobe ACD-30P Clamp-On-Power-Meters Manual de usuario Pagina 11

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10
Measuring 3-Phase 3-Wire
(3 3W) Power Parameters:
In both un-balanced and balanced load cases, 3-Phase 3-Wire (3
3W) systems,
measure the power components kW
1
and kW
2
separately as illustrated. System (total)
power kW
Total
is the summation of the two measured power components. That is:
kW
Total
= kW
1
+ kW
2
(for both un-balanced and balanced load cases)
In balanced load cases, 3-Phase 3-Wire (3
3W) systems, the system (total) power
parameters can be achieved by the following expressions:
kW
Total
= kW
1
+ kW
2
(same as above)
kVA
Total
=
3 x kVA
1
(for balanced load cases only)
kVAR
Total
=
(kVA
Total
2
- kW
Total
2
)
(for balanced load cases only)
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