SATEC EM720 Operation Manual - Manual (Page 168)

Chapter 9 Viewing Files and Reports
Viewing Waveforms
168 EM720 Power Quality and Revenue Meter
Waveform Viewing Options
See Working with Graphic Windows for more information on
working with waveforms.
Viewing Phasor Diagrams
The phasor diagrams show you relative magnitudes and
angles of the three-phase voltage and current fundamental
component. All angles are shown relative to the reference
voltage channel.
To change the reference channel, click on the waveform
window with the right mouse button, select “Options...”, click
on the “Phasor” tab, check the channel you want to make a
reference channel, and then click “OK”.
If you leave the Triangle box checked, PAS connects the ends
of the voltage and current vectors showing you three-phase
voltage and current triangles. This is useful when analyzing
voltage and current unbalances.
Phasor diagrams are calculated over one waveform cycle
pointed to by the left marker line. As you move the marker,
the phasor diagrams are updated reflecting the new marker
position.
Viewing Symmetrical Components
Waveform views have an additional pane at the right where
PAS displays the symmetrical components for voltages and