Installation and Commissioning
8-297SJ62 Manual
C53000-G1140-C121-1
8.3.10 Triggering Oscillographic Recordings
At the end of commissioning, an investigation of a closing operation of a circuit breaker
or primary switching device, under load conditions, should be done to assure the sta-
bility of the protection during the closing process. Oscillographic event recordings ob-
tain the maximum information about the behavior of the 7SJ62.
Requirements To obtain waveform captures, Address 0104 26&)$8/75(& under the '(9,&(
&21),* menu must be set to (QDEOHG.
Along with the capability of storing waveform data and SER information for faults, the
7SJ62 also has the capability of capturing the same data when commands are given
to the device via the service program DIGSI
®
4, the serial interface, or a binary input.
For the latter, the binary input must be masked with event , “!7ULJJHU:DYHIRUP
&DSWXUH”. Triggering for the oscillographic recording then occurs when the input is
energized. An auxiliary contact of the circuit breaker or primary switch may be used to
control the binary input for triggering.
An oscillographic recording that is externally triggered (that is, without a protective el-
ement pickup or device trip) is processed by the device as a normal oscillographic re-
cording with the exception that data are not given in the Trip Log for the event. The
externally triggered record has a number for establishing a sequence.
Triggering with
DIGSI
®
4
To trigger oscillographic recording with DIGSI
®
4, click on 7HVW in the left part of the
window. Double click the entry 7HVW:DYH)RUP in the list in the right part of the win-
dow to trigger the recording. See Figure 8-14.
A report is given in the bottom left region of the window. In addition, message seg-
ments concerning the progress of the procedure are displayed.
The DIGRA
®
program or the Comtrade Viewer program is required to view and ana-
lyze the oscillographic data. Refer to Sub-section 7.1.4.
Figure 8-14 Triggering Oscillographic Recording with DIGSI
®
4
www . ElectricalPartManuals . com
To Next Page
Loading...
Need help?
General