Signal Name Source Destination Description
FollSPAROK AR Modes Enable (9) Leader/Follower (7)
The follower circuit breaker is Ok for single-
phase Autoreclose
InitAR AR Initiation (11)
AR Initiation (11)
CB1-pole / 3-pole trip (13)
CB2 1-pole / 3-pole trip (14)
CB1 AR In Progress (16)
CB2 AR In Progress (17)
Internally derived signal to initiate
Autoreclose (external triggers not included)
Invalid_AR_Mode AR Modes Enable (9) Autoreclose Lockout (55)
An invalid state is being indicated by the
logic that uses opto-inputs to determine
the Autoreclose mode.
LastShot Sequence Counter (18)
Evolving Fault (20)
Autoreclose Lockout (55)
Idicates tha the Autoreclose sequence has
reached the last shot
OKTimeSP 1-phase AR Dead Time (24) Dead Time Start Enable (22)
The dead time for single pole Autoreclose is
OK
PrefLCB1
Leader/Follower CB
Selection (6)
Leader/Follower (7) CB1 is the preferred leader
PrefLCB2
Leader/Follower CB
Selection (6)
Leader/Follower (7) CB2 is the preferred leader
ProtARBlock AR Initiation (11) Autoreclose Lockout (55)
Signal to block Autoreclose for selected
host protection elements
ProtRe_Op Evolving Fault (20)
Autoreclose Lockout (55)
Sequence Counter (18)
1-phase AR Cycle Selection (19)
Evolving Fault (20)
Signal to indicate that further protection
operation has occurred during Autoreclose
ResCB1ARSucc Successful AR Signals (36)
Successful AR Signals (36)
AR Reset Successful (37)
Reset the indication of successful
Autoreclose for CB1
ResCB1Lo Reset CB Lockout (57) Autoreclose Lockout (55) Reset the indication of lockout for CB1
ResCB2ARSucc
Reset the indication of successful
Autoreclose for CB2
ResCB2Lo Reset the indication of lockout for CB2
ResetL-F Evolving Fault (20)
Leader/Follower (7)
1-phase AR Cycle Selection (19)
Used to reset the allocation of leader/
follower functionality
ResPRMem CB1-pole / 3-pole trip (13)
CB2 1-pole / 3-pole trip (14)
Fault Memory (15)
Reset the signal that indicates the faulted
phases that initiated the Autoreclose
SCIncrement Sequence Counter (18) Increment the sequence counter
SCCountoveqShots Sequence counter has exceeded setting
SetLCB1
Leader/Follower
Logic 1 & 2 (7)
Leader/Follower (7) CB1 has been selected as leader
SetLCB2
Leader/Follower
Logic 1 & 2 (7)
Leader/Follower (7) CB2 has been selected as leader
SetCB13PCl
Prepare Reclaim Initiation
(34)
Reclaim Time (35)
Successful AR Signals (36)
Three-phase close command to CB1
SetCB1SPCl
Prepare Reclaim Initiation
(34)
Reclaim Time (35)
Successful AR Signals (36)
Single-phase close command to CB1
SetCB23PCl Reclaim Time (35) Three-phase close command to CB2
SetCB2SPCl Reclaim Time (35) Single-phase close command to CB2
SPDTComp Single-phase dead time complete
TAR2/3Ph
CB1-pole / 3-pole trip (13),
CB2 1-pole / 3-pole trip (14)
CB Trip Time Monitor (53)
A 2-phase or 3-phase trip has initiated
Autoreclose for CB1 (as leader)
Chapter 11 - Autoreclose P446SV
276 P446SV-TM-EN-1