AEM 3945-B Manual

A SERVICE OF

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Power Quality Analyzer Model 3945-B

43

 Cursor enables selection up to 50

th

harmonic, with the

buttons. As soon

as the 25

th

harmonic is reached, the 25

th

to 50

th

rangeappears(0represents

theDCcomponent).

 Selectionofexpertmode-.+ is available for 3-phase hookups by pressing the

buttons(see§5.2.4fordescription).

5.2.2 Single Phase and Phase-to-Phase Current Analysis

07/25/0260 .00Hz 10:26 100

%

.+

3L

L1

L2

L3

34.1

%

36.5

%

Ah 03 2.8

A

THD

-040°

max 34.5

%

max

1.1

%

V A VA U

50

%

25

1 3 5 7 9 11 13 1 5 17 19 21 23 25

Figure 5-9

Selectionof3-phaseorindividualphasesL1,L2andL3,displays:

• The total THD

• The MIN and MAX instantaneous values

• Theparametersfortheharmonicorderselectedbythecursor:

- Percentage in relation to the fundamental

- RMS value and phase angle in relation to the fundamental component

• MIN, MAX instantaneous values for the selected current harmonic

MIN, MAX values are reset each time the cursor position is changed.

W

VA