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DISTRIBUTED DIGITAL FAULT RECORDER – INSTRUCTION MANUAL
VIEWING DATA IN THE DDFR ARCHIVER
CHAPTER 5: RETRIEVING AND VIEWING DDFR ARCHIVER DATA
Waveform records are stored in folders on the local drive categorized first by the DDFR
name. A folder is created for each DDFR.
Waveform file names are based on the Device Name, followed by the date, then followed
by the time of the capture.
The Waveform Viewer feature provides a visual display of power systems data and relay
operation data captured during a specific triggered event. The Waveform Viewer can
display oscillography, phasors, harmonics and actual values retrieved from a Waveform
file. Figure 5-10 shows a typical Waveform Capture
.
FIGURE 5–10: Typical Waveform Capture
5.3.3.5 Waveform Cursor Times
Three cursor lines are shown on the display. The RED cursor line is fixed at the trigger time.
Use the mouse to select either the Time1 (GREEN) or Time2 (BLUE) cursor lines to move the
cursor line to a new location. These two cursor lines can also be adjusted using the scroll
bar at the top of the screen.
The position of the two adjustable cursors is given as a unit of time. The cursor times can
be represented in one of three formats:
Start Time
- The cursor time is the elapsed time from the start time of the
Waveform file.
Trigger Time
- The cursor time is the elapsed time from the trigger time of the
Waveform file.
Actual Time
- The cursor time is the actual time.
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Summary of Contents for Multilin DDFR
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