Siemens siprotec 7SA6 User Manual page 511

7SA6 Manual
C53000-G1176-C133-1
Selection takes place using the menu bar (9LHZ), or clicking in the symbol bar above
the represented switching fields. Figure 7-27 shows all four views simultaneously.
Figure 7-27 SIGRA 4 — Diagrams in the four possible views
The recorded data read into the PC memory are first shown in full on the screen.
Current, and possibly voltage, for each phase and the ground are represented
separately. The date and time of the viewing process are also memorized.
Representation of primary or secondary quantities can be selected. The base values
for currents and voltages are the nominal values of the transformers (CTs or VTs). An
identical scale is used for all currents, relative to the largest occurring current value,
and for all voltages, relative to the largest occurring voltage value.
Having selected the view 7LPH 6LJQDOV different binary information (e. g. general
pickup, general tripping) can be recorded as event marks provided that they were
configured as mark signals beforehand (see Chapter 5). They also have to be within
the recorded time zone (refer to Figure 7-28).
Control During Operation
7-27