Siemens SIPROTEC 7UT613 series Manual page 336

2 Functions
Figure 2-127 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
336
The display shows the configured interlocking reasons. The are marked by letters as
explained in Table 2-19.
Table 2-19 Interlocking Commands
Interlocking Commands
Switching Authority
System Interlocking
Bay Interlocking
SET = ACTUAL (switch direction check)
Protection Blockage
Figure 2-128 shows all interlocking conditions (which usually appear in the display of
the device) for three switchgear items with the relevant abbreviations explained in
Table 2-19. All parameterised interlocking conditions are indicated.
Command
L
S
Z
P
B
C53000-G1176-C160-2
Display
L
S
Z
P
B
7UT613/63x Manual