Protection Functions
PRS-7367 123
Note: If the setting 79AR_AutoRst=0, the lockout can be reset only by 79AR_ResetAR BI.
SET
79AR_AutoRst
&
1
FLG79AR_Reset
SIG
79AR_LockoutAR
&
SIG
79AR_ResetAR
SIG
79AR_LockoutAR
FLG
79AR_Lockout
79AR_T_Relaim/ 0
SIG
79AR_BlockAR
SIG
79AR_BlockAR
&
Figure 3.22-12 Reset AR Lockout
3.22.2.8 Reclosing shots count
The reclose shall be provided with counters to count the number of each reclosing attempts and
total number of unsuccessful shots, each counter will plus 1 when the reclosing attempt is sent
and it can be cleared by submenu [Clr BOCnt], The number will be display in device MENU
[Monitor] -> [BO Count].
Table 3.22-3 The number of each reclosing attempts and total unsuccessful shots
Number of the first shot reclosing attempts
Number of the second shot reclosing attempts
Number of the third shot reclosing attempts
Number of the forth shot reclosing attempts
Number of total unsuccessful reclosing attempts
3.22.2.9 Typical auto-reclose situation
For the first shot, if AR is activated by input 79AR_TripH, the dead time is 79AR_T_DeadTimeH
without synchro check. If the AR cannot reclose during the 79AR_T_Unsuc, the AR Unsuccl BO
will be active, the inprog1 BO will be returned. The Reclaim and Unsuccl BO are active until after
the 79AR_T_Reclaim is issued.
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