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40 | Description of the menu
Power Quality Controller – PQC | Operating Manual | FRAKO
6.2.2.4 V Harm. spectrum, I Harm. spectrum
Main menu > Display > System & PQ > V Harm. spectrum, I Harm. spectrum
Graphical display of the harmonics spectrum up to the 19th
Key
Action
Back to
Display menu
Zoom +
Zoom -
Toggle
between
H1–12 and
H13–19
Additional
info
The fundamental at 50/60 Hz is shown as 100 %. One scale division on the y-axis
represents 5 %.
6.2.2.5 Frequency analysis
Main menu > Display > System & PQ > Frequency analysis
Phase
Measurement on Lx [1 ≤ X ≤ 3]
Frequency
10 Hz to 2,500 Hz in steps of 10 Hz
V(f)
Magnitude of voltage at the selected fre-
quency as a percentage of the fundamental
voltage V
1
(f = 50/60 Hz)
I(f)
Magnitude of current at the selected
frequency as a percentage of the fundamental I
1
(f = 50/60 Hz)
Angle
φ
Angle between V
(f)
and I
(f)
in degrees
Angle
γ
Angle between V
1
(fundamental) and I
(f)
in degrees
Key
Action
Info status
Frequency
+10 Hz
Frequency
–10 Hz
Select phase
–