Creating Oscillographic Recordings For Tests - Siemens siprotec SJ62 User Manual

3 Mounting and Commissioning

3.3.16 Creating Oscillographic Recordings for Tests

General
Requirements
Triggering Oscillo-
graphic Recording
439
In order to be able to test the stability of the protection during switchon procedures
also, switchon trials can also be carried out at the end. Oscillographic records obtain
the maximum information about the behaviour of the protection.
To be able to trip an oscillographic recording, parameter OSC. FAULT REC. must be
configured to Enabled in the Functional Scope. Along with the capability of storing
fault recordings via pickup of the protection function, the 7SJ62/63/64 also has the ca-
pability of capturing the same data when commands are given to the device via the
service program DIGSI, the serial interface, or a binary input. For the latter, event
„>Trig.Wave.Cap." must be allocated to a binary input. Triggering for the oscillo-
graphic recording then occurs, for instance, via the binary input when the protection
object is energized.
Those that are externally triggered (that is, without a protective element pickup) are
processed by the device as a normal oscillographic record. For each oscillographic
record a fault record is created which is given its individual number to ensure that as-
signment can be made properly. However, these recordings are not displayed in the
fault indication buffer, as they are not fault events.
To trigger test measurement recording with DIGSI, click on Test in the left part of the
window. Double click the entry Test Wave Form in the list of the window.
Figure 3-41 Triggering oscillographic recording with DIGSI
Oscillographic recording is started immediately. During recording, a report is given in
the left part of the status bar. Bar segments additionally indicate the progress of the
procedure.
The SIGRA or the Comtrade Viewer program is required to view and analyse the os-
cillographic data.
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015