ERL tesla lite, User Manual, Page: 176 / 288

10 Graphing Records
10-42 TESLA LITE User Manual D03283R01.10
Harmonic View
Figure 10.63: Harmonic View
• Harmonic View is designed to analyse harmonics associated with analog
channels. In order to view harmonics, markers should be enabled by select-
ing
Measure>Markers .
• A maximum of 3 traces can be analysed per view.
• The view displays: analog channels, a bar graph of harmonics and a table
which contains rms values of the harmonics with phase angle.
• The harmonics (order) displayed is as selected on the input channel. This
can be up to the 25th harmonic if desired and selected.
• Channel instantaneous values are displayed on the RHS of the analog
graph.
• Markers are permanently set on the graph one-cycle apart.
• Grab the marker and move (on the time line axis) to display a new set of
harmonics.
All harmonic phase angles are referenced with respect to A-phase
voltage in a configured channel in TESLA recorder. For COMTRADE
records the first A-phase voltage is considered as the reference
phase.
Analog Graph
Bar Graph of
Harmonics
Amplitude
Table displays
Harmonic Amplitude
with corresponding
Phase Angles
Channel Names
Record Title
Markers locked one cycle apart
Time Display
Instantaneous Channel
Amplitude