Siemens SIPROTEC 7SD610 Manual page 106

Functions
2.9 Backup Time Overcurrent Protection
Figure 2-41 Logic diagram of the I> stage
1
) Output indications associated with the pickup signals are listed in Table 2-3
2
) Output indications associated with the trip signals are listed in Table 2-4
3 The indications „O/C L2 forward", „O/C L3 forward", „O/C L2 reverse", „O/C L3 reverse" have
)
not been represented in the Figure, however, they are reported if necessary.
106
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011