Amprobe ACD-31P Manuale d'uso - Pagina 11
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Stampa la pagina●Measuring 3-Phase 3-Wire (3
In both un-balanced and balanced load cases, 3-Phase 3-Wire (3
measure the power components kW
power kW
is the summation of the two measured power components. That is:
Total
kW
= kW
+ kW
Total
1
In balanced load cases, 3-Phase 3-Wire (3
parameters can be achieved by the following expressions:
kW
= kW
Total
kVA
= √ 3 x kVA
Total
kVAR
= √ (kVA
Total
(for both un-balanced and balanced load cases)
2
+ kW
1
2
1
- kW
2
Total
Total
3W) Power Parameters:
and kW
separately as illustrated. System (total)
1
2
3W) systems, the system (total) power
(same as above)
(for balanced load cases only)
)
(for balanced load cases only)
2
10
3W) systems,