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1#0/7%24.ETWORKANALYSER5SERMANUAL
English
MEASUREMENT / CALCULATION METHOD
s 4HEVOLTAGEANDCURRENTMEASUREMENTSTAKEPLACEIN4RUE2-3 BYMEANSOFSAMPLING
ANDANALOGUEDIGITALCONVERSION
s4OCALCULATETHESYSTEMVALUESTHEFOLLOWINGFORMULASAREUSED
System voltage
V
=
V1 + V2 + V3
3
System current
I
=
I1 + I2 + I3
3
Active system power
P
= P1+P2+P3
Reactive system power
Q
= Q1+Q2+Q3
(addition)
Apparent system power
A
=
P
2
+
Q
2
System power factor
PF
=
P
A
Total active energy
E
= E1+E2+E3
Содержание QC-POWER-T-485
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