Harmonics
Harmonics are integer multiples of a fundamental
oscillation.
The fundamental oscillation of the voltage for
UMG 96RM-E must range between 45 and 65Hz.
The calculated harmonic voltages and currents relate
to this fundamental oscillation.
Harmonics up to 40 times the fundamental frequency are
detected.
The harmonics of the currents and of the voltages are
displayed in amperes and volts, respectively.
Fig. Indication of the 15th harmonics of the current
in phase L3 (example).
Number of the harmonic
component
Phase L3
Current harmonics
Value
C
Harmonics are not displayed in the default
factory setting.
Total harmonic distortion THD
THD is the ratio of the rms value of the harmonics
to the rms value of the fundamental oscillation.
Phase L3
Voltage
Value
Fig. Indication of the total harmonic distortion THD
of the voltage of phase L3 (example).
Total harmonic distortion of the current THDI:
Total harmonic distortion of the voltage THDU:
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