Functions
2.18 Auxiliary Functions
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
268
Creating Oscillographic Recordings for Tests
During commissioning, energization sequences should be carried out to check the stability of the protection
also during closing operations. Oscillographic event recordings contain the maximum information on the be-
havior of the protection.
Along with the capability of storing fault recordings via pickup of the protection function, the 7SK80 also has the
capability 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 oscillographic recording then occurs, for instance, via the binary input when the protec-
tion object is energized.
An oscillographic recording that is triggered externally (that is, without a protective element pickup) are pro-
cessed 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 assignment can be made properly. However, these oscillo-
graphic recordings are not displayed in the fault log buffer in the display as they are no network fault events.
The procedure is described in detail in Chapter "Mounting and Commissioning".
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