7.4 Displaying Harmonic Trends
127
Chapter 7 Monitoring Fluctuations in Measured Values
(TIME PLOT Screen)
7
This section descries how to select six orders and display their harmonic time series graphs. The maxi-
mum, minimum, or average value during the TIME PLOT interval can be displayed.
7.4 Displaying Harmonic Trends
[TIME PLOT]
screen
[HarmTrend]
[Harmonics]
Example: 3P4W (3-phase, 4-wire)
Select with the F key.
To change displayed items/waveform/measurement
value (p.128)
To enlarge or reduce the graph (p.128)
To change display number of order (p.128)
To read the value above the cursor (p.129)
To scroll waveform data (p.130)
To search for an event (p.130)
[HarmTrend]
[Interharm]
• When [Power] is selected under the [Recording Items] settings (see SYSTEM-DF1
[Record]-F1[
Interval] (p.76)), harmonic trends (the harmonic trend graph and inter-
harmonic trend graphs) will not
be displayed. Additionally, inter-harmonic trend data will
not be displayed if [P&Harm] is selected.
• During 400 Hz measurement, harmonic analysis is pe
rformed up to the 10th order, and
inter-harmonic analysis is not available.
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