Alstom MiCOM P546 - Page 140

P54x/EN ST/La4 Settings
(ST) 4-62 MiCOM P543, P544, P545, P546
ST
Setting range
Menu text Default setting Step size
Min. Max.
3P AR DT Shot 4 60.0 s 1.0 s 9999 s 1 s
Dead time setting for three phase auto-reclose (4th shot).
Follower Time 5.0 s 100.0 ms 300 s 10 ms
Time delay setting for follower CB reclosing after leader CB has reclosed.
SPAR ReclaimTime 60.0 s 1.0 s 600 s 1 s
Reclaim time setting following single phase auto-reclosure.
3PAR ReclaimTime 180.0 s 1.0 s 600 s 1 s
Reclaim time setting following three phase auto-reclosure.
AR CBHealthy Time 5 s 0.01s 9999 s 0.01 s
Maximum waiting time to enable CB Closing by auto-reclose.
Input DDBs (436/437) are used for CB1 Healthy & CB ectively to enable 2 Healthy resp
CB1 se by auand CB2 Clo to-reclose.
If the set time runs out with the input DDB: CBx Healthy low (= AR CBx 0), alarm
Unhealthy (DDB307 or 9 for CB1 & CB2 res ctively) is set and the CBx auto-reclose 32 pe
sequence is cancelled.
AR CheckSync Time 5 s 0.01 s 9999 s 0.01 s
Maximum waiting time for relevant signals CB1L SCOK or CB1F SCOK from system
c ogic, to enable CB1 Close by auto-reclose. heck l
Same waiting time setting applies to input signals CB2L SCOK or CB2F SCOK to enable
CB2 Close by auto-reclose.
If the set time runs out with the input signal CBx SCOK low (= 0), System Check
Synchronization fail ala AR CBx NO C/S (DDB 308 or 330 f CB1 & CB2 pectively) rm or res
is set and the CBx auto-reclose sequence is cancelled.
Z1 AR Initiate AR Block AR or Initiate AR
Setting that determines impact of instantaneous zone 1 on AR operation.
(Only in models with distance option)
Diff AR Initiate AR Block AR or Initiate AR
Setting that determines im differentpact of the phase ial tripping on AR operation.
Dist Aided AR Initiate AR Block AR or Initiate AR
Setting that determines impact of the aided distance schemes tripping on AR operation.
(Only in models with dis option) tance
Z2T AR Block AR
No action, Block AR or
Initiate AR
Setting that determines impact of time delayed zone 2 on AR operation. Set Initiate AR if
the trip should initiate a cycle, and Block AR if a time delayed trip should cause lockout.
Set No action if Zone 2 tripping should exert n n the r er. o specific logic control o eclos
(Only in models with distance option)
Z3T AR Block AR
No action, Block AR or
Initiate AR
Similar application to Z3T AR. Selection for Zone 3 trips.
(Only in models with distance option)