2 Functions
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7SD610 Manual
C53000-G1176-C145-4
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 cor-
responding reclose cycle.
„AR is blocked“ (No. 2783)
The automatic reclosure is blocked (e.g. circuit breaker not ready). This information
indicates to the operational 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.
„AR not ready“ (No. 2784)
The automatic reclosure is not ready for reclosure at the moment. In addition to the
„AR 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 protec-
tion test cycle with reclosure may be initiated during this state.
„AR in progress“ (No. 2801)
This information appears with starting of the automatic reclosure function, i.e. with the
first trip command which can start the automatic reclosure. If this reclosure was suc-
cessful (or any in the case of multiple cycles), this information resets with the expiry of
the last blocking time. If no reclosure was successful or if reclosure was blocked, it
ends with the last – the final – trip command.
„AR Sync.Request“ (No. 2865)
Measuring request to an external synchronism check device. The information appears
at the end of a dead time subsequent to three-pole tripping if a synchronism request
was parameterised for the corresponding cycle. Reclosure only takes place when the
synchronism check device has provided release signal „>Sync.release“ (No.
2731).
„>Sync.release“ (No. 2731)
Release of reclosure by an external synchronism check device if this was requested
by the output information „AR Sync.Request“ (No. 2865).
2.10.3 Settings
Addresses which have an appended "A" can only be changed with DIGSI, under Ad-
ditional Settings.
Addr. Parameter Setting Options Default Setting Comments
3401 AUTO RECLOSE OFF
ON
ON Auto-Reclose Function
3402 CB? 1.TRIP YES
NO
NO CB ready interrogation at 1st trip
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