c
P44x/EN PL/Hb
MiCOM 40 Agile P442, P444
(PL) 6-
Ordinal English Text Description Source
229 A/R Reclaim
Internal autoreclose reclaim in progress (reclaim time
timeout in progress).
If it is assigned to an opto input in the PSL and when
energised, the DDB:‘A/R Reclaim’ signal will start the
internal logic TOR enable (External AR logic applied).
The DDB indicates the reclaim time following a particular
autoreclose shot is timing out. The DDB:'AR Reclaim'
output would be energised at the same instant as any
Cycle outputs are reset. ‘A/R Reclaim’ may be used to
block low-set instantaneous protection on autoreclosure,
when it has not been time-graded with a downstream
protection. This technique is commonly used when the
downstream devices are fuses, and fuse saving is
implemented. This avoids fuse blowing for transient
faults.
‘A/R reclaim’ can be connected to Main2 for cycle in
progress external information. It initiates the internal
TOR logic
PSL (OUT)
Autorecloser
230 AR Discrim.
'Discrimination time' window in progress (starts with the
trip command).
When a single pole trip is issued by the relay, a 1-pole
AR cycle is initiated. The 'Dead time 1' and
'Discrimination time' are started. If the autoreclose logic
detects a single pole or three-pole trip (internal or
external) during the discrimination time-delay, the single
pole high speed autoreclose cycle is disabled and
replaced by a three pole high speed autoreclose cycle, if
enabled. If no three-pole autoreclose is enabled, the
relay trips 3-pole and the autoreclose is blocked.
If the autoreclose logic detects a 3-pole trip (internal or
external) when the Discrimination time-delay has
elapsed and during the 1-pole dead time; the single pole
AR cycle is stopped and the relay trips 3-pole and blocks
the autoreclose.
PSL (OUT)
Autorecloser
231 A/R Enable
Indicates the autoreclose function is in service
1 = [If 'A/R SPAR Enable' OR 'A/R TPAR Enable'] AND
''Internal A/R' = enabled (setting)
Reset to 0: If 'A/R SPAR Enable'=0 AND 'A/R TPAR
Enable'=0 (if assigned in PSL) + ''Internal A/R' =
disabled (setting)
PSL (OUT)
Autorecloser
232 A/R SPAR Enable
Single pole autorecloser (SPAR) activated: If it is
assigned to an opto input in the PSL (by default PSL is
inverted and linked to opto 8) and energized, The
DDB:'A/R SPAR Enable' will enable the 1-pole
autoreclose logic (the priority of this input is higher than
the 'CB Control/A/R single pole' setting) - this means the
1-pole autoreclose logic can be disabled even if it has
been activated; if the relevant opto input is not energized
(to be valid, the opto must be energised for over1.2s).
NOTE: After a new PSL has been downloaded to the
relay (including the "TPAR" or "SPAR" cells); the
settings configuration must be uploaded back (from PC
to relay) to update the data in the RAM and the
EEPROM (otherwise discrepancies could appear in the
“A/R enable” logic state).
Set to 1: 1P AR activated (copy of 'SPAR Enable' opto
input OR 'CB Control/ A/R Single pole' enabled)
Reset to 0: if 'SPAR Enable' = 0 OR (A/R Single pole'
disabled)
PSL (OUT)
Autorecloser
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