3464
2.AR:DeadT.1Flt
Dead time after 1-phase pickup
3465
2.AR:DeadT.2Flt
Dead time after 2-phase pickup
3466
2.AR:DeadT.3Flt
Dead time after 3-phase pickup
3468
2.AR:Dead 3Trip
Dead time after 3-pole tripping
3469
2.AR:DeadT.EV.
Dead time after evolving fault
3470
2.AR:52? CLOSE
CB ready interrogation before reclosing
Notes on the Information Overview
The most important information about automatic reclosure is briefly explained insofar as it was not mentioned
in the following lists or described in detail in the preceding text.
>BLK 1.AR-cycle
(Nr 2742) bis
>BLK 2.AR-cycle
(Nr 2743)
The respective auto-reclose cycle is blocked. If the blocking state already exists when the automatic reclosure
function is initiated, the blocked cycle is not executed and may be skipped (if other cycles are permitted). The
same applies if the automatic reclosure function is started (running) but not internally blocked. If the block
signal of a cycle appears while this cycle is being executed (in progress) the automatic reclosure function is
blocked dynamically; no further automatic reclosures cycles are then executed.
79 1.CycZoneRel
(Nr 2889) und
79 2.CycZoneRel
(Nr. 2890)
The automatic reclosure is ready for the respective reclosure cycle. This information indicates which cycle will
be run next. For example, external protection functions can use this information to release accelerated or
overreaching trip stages prior to the corresponding reclose cycle.
79 is blocked
(Nr 2783)
The automatic reclosure is blocked (e.g. circuit breaker not ready). This information indicates to the opera-
tional information system that in the event of an upcoming system fault there will be a final trip, i.e. without
reclosure. If the automatic reclosure has been started, this information does not appear.
79 not ready
(Nr 2784)
The automatic reclosure is not ready for reclosure at the moment. In addition to the
79 is blocked
(No.
2783) mentioned above there are also obstructions during the course of the auto-reclosure cycles such as
“action time run out” or “last reclaim time running”. This information is particularly helpful during testing
because no protection test cycle with reclosure may be initiated during this state.
79 in progress
(Nr 2801)
This information appears following starting of the auto reclose function, i.e. with the first trip command that
can start the auto reclose function. If this reclosure was successful (or any in the case of multiple cycles), the
information is reset with the expiry of the last restraint time. If no reclosure was successful or if reclosure was
blocked, it ends with the last – the final – trip command.
Settings
Addresses which have an appended “A” can only be changed with DIGSI, under “Additional Settings”.
Addr.
Parameter Setting Options Default Setting Comments
3401 FCT 79 OFF
ON
ON 79 Auto-Reclose Function
3402 52? 1.TRIP YES
NO
NO 52-ready interrogation at 1st trip
3403 T-RECLAIM 0.50 .. 300.00 sec 3.00 sec Reclaim time after successful AR
cycle
3404 BLOCK MC Dur. 0.50 .. 300.00 sec 1.00 sec AR blocking duration after manual
close
3406 EV. FLT. RECOG. with PICKUP
with TRIP
with TRIP Evolving fault recognition
2.11.3
Functions
2.11 Automatic Reclosure Function (optional) 79
SIPROTEC 4, 7SD80, Manual 139
E50417-G1100-C474-A2, Edition 02.2018
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