ABB REG650 - Interlocking; Functionality; Logical Node for Interlocking SCILO; Function Block

defined in the IED. Otherwise the default authority level, SuperUser, can handle the
control without LogOn. The users and passwords are defined in PCM600.
12.3 Interlocking
12.3.1 Functionality
The interlocking functionality blocks the possibility to operate high-voltage
switching devices, for instance when a disconnector is under load, in order to prevent
material damage and/or accidental human injury.
Each control IED has interlocking functions for different switchyard arrangements,
each handling the interlocking of one bay. The interlocking functionality in each IED
is not dependent on any central function. For the station-wide interlocking, the IEDs
communicate via the station bus or by using hard wired binary inputs/outputs.
The interlocking conditions depend on the primary bus configuration and status of any
breaker or switch at any given time.
12.3.2 Logical node for interlocking SCILO
12.3.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Logical node for interlocking SCILO - 3
12.3.2.2 Functionality
The Logical node for interlocking SCILO function is used to enable a switching
operation if the interlocking conditions permit. SCILO function itself does not
provide any interlocking functionality. The interlocking conditions are generated in
separate function blocks containing the interlocking logic and provides SCILO its
input.
12.3.2.3 Function block
SCILO
POSOPEN
POSCLOSE
OPEN_EN
CLOSE_EN
EN_OPEN
EN_CLOSE
IEC09000083.vsd
IEC09000083 V1 EN
Figure 179: SCILO function block
1MRK 502 048-UEN A Section 12
Control
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Technical manual