ABB RELION REX640 - 9.9.4.1 Signal collection and delay logic

INIT_1
INIT_2
INIT_3
INIT_4
INIT_5
INIT_6
DEL_INIT_2
DEL_INIT_3
DEL_INIT_4
CB_POS
CB_READY
SYNC
INHIBIT_RECL
Signal
collection
and delay
logic
Shot
pointer
controller
Circuit
breaker
controller
Sequence
controller
OPEN_CB
CLOSE_CB
LOCKED
UNSUC_RECL
INPRO
Protection
coordination
controller
PROT_CRD
CMD_WAIT
BLK_RECL_T
BLK_RCLM_T
BLK_THERM
INC_SHOTP
RECL_ON
Shot
initiation
Reclose
controller
AR_ON
READY
ACTIVE
Figure 893: Functional module diagram
9.9.4.1 Signal collection and delay logic
When the protection trips, the initiation of autoreclosing shots is in most
applications executed with the INIT_1...6 inputs. The DEL_INIT2...4 inputs are
not used. In some countries, starting the protection stage is also used for the shot
initiation. This is the only time when the DEL_INIT inputs are used.
1MRS759142 F
Control functions
REX640
Technical Manual
1665