AEM 3945-B Manual

A SERVICE OF

next previous

Power Quality Analyzer Model 3945-B

47

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.

07/25/0250.00Hz 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

12

43

Reactive Power - from load

Reactive Power - from supply

Figure 5-14