MI 2892 Power Master
Operating the instrument
45
Figure 3.30: Harmonics and interharmonics (METER) screens
Description of symbols and abbreviations used in METER screens are shown in table below.
Table 3.22: Instrument screen symbols and abbreviations
RMS
RMS voltage / current value
THD
Total voltage / current harmonic distortion THD
U
and THD
I
in % of fundamental
voltage / current harmonic or in RMS V, A.
k
k-factor (unit-less) indicates the amount of harmonics that load generate
DC
Voltage or current DC component in % of fundamental voltage / current harmonic
or in RMS V, A.
h1 … h50
n-th harmonic voltage Uh
n
or current Ih
n
component in % of fundamental voltage
/ current harmonic or in RMS V, A.
ih0 … ih50
n-th interharmonic voltage Uih
n
or current Iih
n
component in % of fundamental
voltage / current harmonic or in RMS V, A.
Table 3.23: Keys in Harmonics / interharmonics (METER) screens
HOLD
Holds measurement on display. Hold clock time will be displayed in the
right top corner.
RUN
Runs held measurement.
VIEW
Switches view between Harmonics and Interharmonics.
Switches units between:
RMS (Volts ,Amperes)
% of fundamental harmonic
Keys in VIEW window:
Selects option.
Confirms selected option.
Exits selection window without change.
Selects between single phase, neutral, all-phases and line harmonics /
interharmonics view.
F1
F2
ENTER
F3
