Table of Contents
Advertisement
1500
1000
500
–500
–1000
–1500
The distortion observed in Figure 1.11 can be modeled as the sum of several
sinusoidal waveforms of frequencies that are multiples of the fundamental 60 Hz
frequency. This modeling is performed by mathematically disassembling the distorted
waveform into a collection of higher frequency waveforms.
These higher frequency waveforms are referred to as harmonics. Figure 1.12 shows
the content of the harmonic frequencies that make up the distortion portion of the
waveform in Figure 1.11.
1000
500
0
– 500
Electro Industries/GaugeTech
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
The Leader In Power Monitoring and Smart Grid Solutions
0
Figure 1.11: Distorted Current Waveform
Figure 1.12: Waveforms of the Harmonics
1: Three Phase Power Measurement
a
Doc
E145721
#
t
2a
Time
3rd harmonic
5th harmonic
7th harmonic
Total
fundamental
1 - 15
Advertisement
Table of Contents
