ABB REC650 - Interlocking; Functionality; Logical Node for Interlocking SCILO

LOCREMCTRL
PSTO1
PSTO2
PSTO3
PSTO4
PSTO5
PSTO6
PSTO7
PSTO8
PSTO9
PSTO10
PSTO11
PSTO12
HMICTR1
HMICTR2
HMICTR3
HMICTR4
HMICTR5
HMICTR6
HMICTR7
HMICTR8
HMICTR9
HMICTR10
HMICTR11
HMICTR12
QCBAY
LR_ OFF
LR_ LOC
LR_ REM
LR_ VALID
BL_ UPD
BL_ CMD
PSTO
UPD_ BLKD
CMD_ BLKD
LOCREM
CTRLOFF
LOCCTRL
REMCTRL
LHMICTRL
OFF
LOCAL
REMOTE
VALID
IEC 09000208_1_en. vsd
LOC
REM
IEC09000208 V2 EN
Figure 128: Configuration for the local/remote handling for a local HMI with one
bay and one screen page
The switching of the local/remote switch requires at least system operator level. The
password will be requested at an attempt to operate if authority levels have been
defined in the IED. Otherwise the default authority level, SuperUser, can handle the
control without LogOn. The users and passwords are defined in PCM600.
10.4 Interlocking
10.4.1 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.
10.4.2 Logical node for interlocking SCILO
1MRK 511 287-UEN A Section 10
Control
263
Technical manual