6.3 Viewing Anomalous Phenomena (EVENT screen)
122
Select the event with the *I indicator in the Event List to display its inrush
current graph.
Pressing the up/down cursor keys switches the display sequentially
between events. The rms current fluctuation graph is calculated from each
half-cycle measurement (Irms 1/2). The event inrush current fluctuation
graph begins about 0.5 seconds before detection and continues to about
29.5 seconds after detection. The graph is drawn according to the selected
channel colors.
Displaying Detected Inrush Current Events [INRUSH]
Select the screen.
Magnifying and Compressing Wave-
forms
The horizontal axis can be set to 0.5, 1, 2 or
5 sec/div.
To perform cursor measurement
Scrolls the graph horizontally
Cursor value
(Rms current on each
channel)
Cursor period
(Elapsed time from
event detection to
cursor position)
0.000 sec
Cursor period
To change time axis magnification
• Cursor period calculation is valid only for 50 or 60 Hz line frequency.
• The inrush current fluctuation graph displays rms current fluctuations.
To Next Page
Loading...
