4.3.3
Waveform Capture
Figure 4-8
7SJ62 Manual
C53000-G1140-C121-1
As an option, SIPROTEC
quence of Event Report (SER) for the elements in the device. Furthermore, the ele-
ments that are shown in the SER can be selected by the user.
The waveform and SER data are retrieved from the device memory by DIGSI
are saved as waveform capture in standard COMTRADE format.
®
The DIGRA
4 program is used to convert the oscillographic data into graphical rep-
resentations that can be used to analyze the fault or the event captured by the device.
®
DIGRA
4 calculates additional values from the waveform data, e.g. impedances and
rms values, and displays the captured and calculated values in:
q
Analogue Curves with timebase (Time Signals),
q
Vector Diagrams,
q
Circle Diagrams, and
q
Harmonic graphs.
®
DIGRA
4 Graphical Representations of the Waveform Data, View Examples
Details can be found in the DIGSI
®
C097, and the DIGRA
4 instruction book, order number E50417-H1176-C070.
®
4 devices can have waveform capturing that includes Se-
®
4 instruction book, order number E50417-H1176-
SIPROTEC 4 Devices
®
4 and
digra009
4-13