YOKOGAWA WT310EH - Page 65

4-11
IM WT310E-01EN
Measuring Power
1
2
3
4
5
6
7
8
App
Index
Examples
A+B:TheresultofaddingthevaluesofdisplayAanddisplayB(totalpower)isdisplayed.
Computation example:
Any
Display A Display B Display C Wiring System
P1 P2 or P3 P1+P2
or P1+P3
Inverter
P1
P2 or P3
A-B:TheresultofsubtractingthevalueofdisplayBfromthevalueofdisplayA(powerloss)is
displayed.
Computation example 1:
P1
Any
Display A Display B Display C Wiring System
P1 P3 P1–P3
P3
Inverter
Computation example 2:
3P3W
Display A Display B Display C Wiring System
PΣ(=P1+P3) P2 PΣ–P2
P2
P1
P3
Inverter
Computation example 3:
3P3W
Display A Display B Display C Wiring System
P2 P2–PΣ
P2
P1
P3
PΣ(=P1+P3)
Inverter
4.5 Displaying the Efficiency (WT332E/WT333E only), Crest Factors, the Results of Computations Using
Basic Arithmetic, and Average Active Powers