Power Quality Analyzer Model 3945
43
5.3.2
Button
This function key is used to display generated or consumed power, or real, reactive
and apparent energy.
This button toggles the display between generated energy (from load to supply)
and consumed energy (from supply to load) each time it is pressed. When the
is highlighted (yellow background) the display shows generated energy.
5.3.3 PF...
Button
In
“3L”
display mode, the PF (Power Factor ), DPF (Displacement Power Factor
[fundamental V, I, phase shift] ) or Cosine
ϕ
values and the Tangent
ϕ
can be dis-
played by pressing the
“PF...”
button.
07/25/02
50.00Hz
10:59
100%
3L
L1
L2
L3
0.634
0.999
0.999
- 0.439
+0.050
+0.035
0.998
0.995
PF
DPF
Tan
1
2
3
W...
PF...
0.742
Power Factor
DPF or Cosine
ϕ
Tangent
ϕ
Figure 5-13
Four Quadrant Power Diagram:
-W
+W
+Var
-Var
Produced
Consumed
1
2
4
3
Reactive Power - from load
Reactive Power - from supply
Figure 5-14
