Chapter 7 Monitoring Meters Viewing Real-time Harmonic Spectrum
PM135 Powermeter Series 127
1. Click on the spectrum window with
the right mouse button and select
Limits….
2. Select a known harmonics standard,
or select Custom and specify your
own harmonic limits.
3. Check the Enabled box to visualize
harmonic faults on the spectrum
graph and in harmonic tables.
Harmonics that exceed selected compliance levels are colored in red on
the graph and in the tables.
Figure 7-4: Harmonic Limits
Viewing a Spectrum Table
Click on the button on the local toolbar to display the harmonics
spectrum in a tabular view for a selected phase or for all phases together.
The spectrum table shows voltage, current, active power and reactive
power harmonic components both in percent of the fundamental and in
natural units, and harmonic phase angles.
To change a phase, click on the window with the right mouse button,
select Options..., check the phase you want displayed, and then click OK.
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