Operation Principle - ABB RELION Series Technical Manual

Section 9
Control functions
9.1.4
604
functions are designed according to the IEC 61850-7-4 standard with logical nodes
CILO, CSWI and XSWI/XCBR.
The circuit breaker and disconnector control functions have an operation counter for
closing and opening cycles. The counter value can be read and written remotely from
the place of operation or via the LHMI.

Operation principle

Status indication and validity check
The object state is defined by two digital inputs, POSOPEN and POSCLOSE, which
are also available as outputs OPENPOS and CLOSEPOS together with the OKPOS
according to Table 628. The debouncing and short disturbances in an input are
eliminated by filtering. The binary input filtering time can be adjusted separately for
each digital input used by the function block. The validity of the digital inputs that
indicate the object state is used as additional information in indications and event
logging. The reporting of faulty or intermediate position of the apparatus occurs after
the Event delay setting, assuming that the circuit breaker is still in a corresponding
state.
Table 628: Status indication
Input
POSOPEN POSCLOSE
1=True 0=False
0=False 1=True
1=True 1=True
0=False 0=False
Enabling and blocking
CBXCBR and DCXSWI have an enabling and blocking functionality for interlocking
and synchrocheck purposes.
Circuit breaker control CBXCBR
Normally, the CB closing is enabled (that is, CLOSE_ENAD signal is TRUE) by
activating both ENA_CLOSE and SYNC_OK inputs. Typically, the ENA_CLOSE
comes from the interlocking, and SYNC_OK comes from the synchronism and
energizing check. The input SYNC_ITL_BYP can be used for bypassing this control.
The SYNC_ITL_BYP input can be used to activate CLOSE_ENAD discarding the
ENA_CLOSE and SYNC_OK input states. However, the BLK_CLOSE input always
blocks the CLOSE_ENAD output.
Status Output
POSITION OKPOS
(Monitored
data)
1=Open 1=True
2=Closed 1=True
3=Faulty/Bad 0=False
(11)
0=Intermediat 0=False
e (00)
1MRS758755 A
OPENPOS CLOSEPOS
1=True 0=False
0=False 1=True
0=False 0=False
0=False 0=False
REC615 and RER615
Technical Manual