• Only such CBBs that are set for the next shot in the sequence can be accepted
for execution. For example, if the next shot in the sequence should be shot 2, a
request from CBB set for shot 3 is rejected.
• Any CBB that is set for the next shot or any of the following shots can be
accepted for execution. For example, if the next shot in the sequence should be
shot 2, also CBBs that are set for shots 3, 4 and 5 are accepted. In other words,
shot 2 can be ignored.
In case there are multiple CBBs allowed for execution, the CBB with the smallest
number is chosen. For example, if CBB2 and CBB4 request an execution, CBB2 is
allowed to execute the shot.
The auto-reclose function can perform up to five auto-reclose shots or cycles.
9.4.6.3 Configuration examples
OR
CB_ TRIP
Circuit breaker position
information from binary input
Conditions to verify if circuit breaker
is ready to be reclosed
CB_CLOSE
PHLPTOC
I_A
I_B START
OPERATE
I_C
BLOCK
ENA_ M ULT
PHHP TOC
I _A
I _B START
OPERATE
I _C
BLOCK
ENA _MULT
EFLPTOC
Io
BLOCK START
OPERATE
ENA_ M ULT
DARREC
OPEN _CB
CLOSE _CB
CM D_W AIT
INPRO
LOCKED
PROT_ CRD
UNSUC_RECL
DEL _INIT _4
DEL _INIT _3
DEL _INIT _2
INIT _6
INIT _5
INIT _4
INIT _3
INIT _2
INIT _1
SYNC
INC_SH OTP
CB _READY
CB _POS
RECL _ON
INHIBIT _REC L
BLK _RCLM_T
BLK _RECL_ T
BLK _THERM
AR_ON
READY
A070886 V4 EN
Figure 389: Example connection between protection and autoreclose functions
in IED configuration
It is possible to create several sequences for a configuration.
Autoreclose sequences for overcurrent and non-directional earth-fault protection
applications where high speed and delayed autoreclosings are needed can be as
follows:
1YHT530004D05 D Section 9
Control functions
615 series 715
Technical Manual
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