Chapter 7 Monitoring Meters Viewing Real-time Harmonic Spectrum
EM13x Series SMART MULTIFUNCTION METER 127
Viewing Phase-to-phase Voltages
PAS can transform phase-to-neutral voltage waveforms in
configurations with a neutral into phase-to-phase waveforms allowing
you to view the waveshape, angle relationships and harmonics of the
phase-to-phase voltages.
Click on the button on the waveform window toolbar. Click the
button once again to return to phase-to-neutral waveforms.
7.4 Viewing Real-time Harmonic Spectrum
To retrieve real-time harmonic spectrum from your meter:
Ensure that the On-line button on the PAS toolbar is checked.
Select the device site from the list box on the toolbar.
Select RT Harmonic Monitor from the Monitor menu or click on the
button on the PAS toolbar.
Click on the “Poll” or “Continuous poll” button to poll the meter
once or continuously. Click on the Stop button to stop continuous
polling.
Figure 7-3: RT Harmonic Monitor – Spectrum Chart
PAS retrieves harmonic spectrum for V1-V3 and I1-I3 channels.
Harmonics can be displayed as a spectrum chart for a selected channel
or in a table. PAS can also synthesize waveforms based on the
harmonic spectrum to let you view a shape of the voltage and current
waveforms in your network.
Viewing a Spectrum Chart
Click on the button to view a spectrum chart for the selected
channel. To change a channel, click on the window with the right
mouse button, select Channels..., check the channel you want
displayed, and then click OK. PAS provides voltage, current, active
power and reactive power spectrum charts.
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