Receptacle Branch Circuits
Measuring Voltage Harmonics
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Measuring Voltage Harmonics
You can perform a quick check on harmonics in a power distribution system by
measuring the Total Harmonic Distortion on the voltage.
1
Open the main menu.
2
3 Select VOLTS.
4
Make connections as shown below:
(5)
Scale the harmonics spectrum screen to see more or less
details.
Look at the harmonics spectrum screen. Check the spectrum for severe
harmonics.
If the THD is lower than 5%, the voltage distortion level is probably
acceptable.
HARMONICS
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