Siemens SIPROTEC 4 Manual page 117

Specific device (e.g. switching device)
Table 2-12
Current Switching
Switching
Authority Status
LOCAL not
registered
LOCAL Checked
REMOTE Not checked
REMOTE Checked
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 status): is not marked"
3) SC = Source of command
SC = Auto SICAM:
Commands that are initiated internally (command processing in the CFC) are not subject to switching
authority and are therefore always "allowed".
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 switching.
With a 7RW80, the switching mode can be changed between "locked" and "unlocked" on the operator panel
after having entered the password or by means of CFC also via binary inputs and a function key.
The following switching modes (remote) are defined:
•
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 SICAM), please observe the notes in the CFC manual (compo-
nent: BOOL to command).
Zone Controlled / Field Interlocking
Zone controlled / field interlocking (e.g. via CFC) includes the verification that predetermined switchgear posi-
tion conditions are satisfied to prevent switching errors (e.g. disconnector vs. ground switch, ground switch
only if no voltage applied) as well as verification of the state of other mechanical interlocking in the switch-
gear bay (e.g. High Voltage compartment doors).
Interlocking conditions can be programmed separately, for each switching device, for device control CLOSE
and/or OPEN.
The enable information with the data "switching device is interlocked (OFF/NV/FLT) or enabled (ON)" can be
set up,
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018
Interlocking logic
Command Issued with
SC 3) =LOCAL
Allowed
Allowed
Interlocked 1) - "switching
authority REMOTE"
Interlocked 1) - "switching
authority DIGSI"
Switching authority REMOTE (check for LOCAL, REMOTE, or
DIGSI commands: y/n
Command Issued from
SC=LOCAL or REMOTE
Interlocked 2) - "switching
authority LOCAL"
Interlocked 2) - "switching
authority LOCAL"
Allowed
Interlocked 2) - "switching
authority DIGSI"
Functions
2.13 Breaker Control
Command issued from
SC=DIGSI
Interlocked "DIGSI not
registered"
Interlocked 2) - "switching
authority LOCAL" „verrie-
gelt, da VORORT–
Steuerung"
Interlocked "DIGSI not
registered"
Allowed
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