Functions
2.18 Breaker Control
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
221
The following figure shows the configuration of the interlocking conditions using DIGSI.
Figure 2-85 DIGSI dialog box for setting the interlocking conditions
On devices with operator panel, the display shows the configured interlocking reasons. They are marked with
letters explained in the following table.
Table 2-14 Command types and corresponding messages
The following figure shows all interlocking conditions (which usually appear in the display of the device) for
three switchgear items with the relevant abbreviations explained in the previous table. All parameterized inter-
locking conditions are indicated.
Figure 2-86 Example of configured interlocking conditions
Interlocking Commands Abbrev. Display
Switching Authority L L
System interlocking S A
Zone controlled Z Z
SET = ACTUAL (switch direction check) P P
Protection blocking B B
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