Siemens SIPROTEC 7SJ61 - Page 253

Functions
2.18 Breaker Control
SIPROTEC, 7SJ61, Manual
C53000-G1140-C210-1, Release date 02.2008
253
Table 2-19 Interlocking logic
1)
also "allowed" for: "Switching Authority LOCAL (check for Local status): is not marked
2)
also "allowed" for: ”Switching authority REMOTE (check for LOCAL, REMOTE, or DIGSI commands): is not marked
3)
SC = Source of command
SC = Auto:
Commands that are derived internally (command processing in the CFC) are not subject to switching authority
and are therefore always "enabled".
Switching Mode
The switching mode determines whether selected interlocking conditions will be activated or deactivated at the
time of the switching operation.
The following switching modes (local) are defined:
• Local commands (SC=LOCAL)
– interlocked (normal), or
– non-interlocked (de-interlocked) switching.
For the 7SJ61 the switching authority can be changed between "Interlocked" and "Non-interlocked" in the op-
erator panel by password or by means of CFC also via binary input and function key.
The following switching modes (remote) are defined:
• For remote or DIGSI commands (SC = LOCAL, REMOTE, or DIGSI)
– interlocked, or
– non-interlocked switching. Here, deactivation of interlocking is accomplished via a separate command.
– For commands from CFC (SC = Auto), please observe the notes in the CFC manual (component: BOOL
to command).
Current
Switching
Authority Status
Switching
Authority DIGSI
Command issued from
SC
3)
=Local
Command issued from
SC=LOCAL or REMOTE
Command issued from
SC=DIGSI
LOCAL (ON) not logged on not allocated Interlocked
2)
- "interlocked, since control
LOCAL"
Interlocked
- "DIGSI not logged on"
LOCAL (ON) logged on not allocated Interlocked
2)
- "interlocked, since control
LOCAL"
Interlocked
2)
- "interlocked, since control
LOCAL"
REMOTE (OFF) not logged on Interlocked
1)
- "interlocked, since
control REMOTE"
not allocated Interlocked
- "DIGSI not logged on"
REMOTE (OFF) logged on Interlocked
1)
- "interlocked, because of
DIGSI control"
Interlocked
2)
- "inter-
locked, because of DIGSI
control"
not allocated