Amprobe ACD-30P Clamp-On-Power-Meters Manual do Utilizador descarregar pdf (Página 11)

●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

and kW

separately as illustrated. System (total)

power kW

Total

is the summation of the two measured power components. That is:

Total

= kW

+ kW

(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:

Total

= kW

+ kW

(same as above)

kVA

Total

√

3 x kVA

(for balanced load cases only)

kVAR

Total

√

(kVA

Total

- kW

Total

)

(for balanced load cases only)

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Amprobe ACD-30P Clamp-On-Power-Meters Manual do Utilizador Página 11