2 Functions
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7SD5 Manual
C53000-G1176-C169-1
Figure 2-189 Standard interlockings
1) Source of Command REMOTE includes LOCAL.
LOCAL Command using substation controller
REMOTE Command via telecontrol station to power system management and from power system management to the
device
The display shows the configured interlocking reasons. The are marked by letters ex-
plained in Table 2-25.
Table 2-25 Interlocking Commands
Figure 2-190 shows all interlocking conditions (which usually appear in the display of
the device) for three switchgear items with the relevant abbreviations explained in
Table 2-25. All parametrized interlocking conditions are shown.
Interlocking Commands Command Display
Switching Authority L L
System Interlocking S S
Bay Interlocking Z Z
SET = ACTUAL (switch direction check) P P
Protection Blockage B B
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