Information Overview - Siemens siprotec 7SA522 User Manual

Addr. Setting Title
3493 4.AR SynRequest
3430 AR TRIP 3pole
3431 DLC or RDT
3438 T U-stable
3440 U-live>
3441 U-dead<
3420 AR w/ DIST.
3421 AR w/ SOTF-O/C
3422 AR w/ W/I
3423 AR w/ EF-O/C
3424 AR w/ DTT
3425 AR w/ BackUpO/C

6.11.4 Information overview

7SA522 Manual
C53000-G1176-C119-2
Setting Options
YES
NO
YES
NO
Without
Reduced Dead Time (RDT)
Dead Line Check (DLC)
0.10..30.00 sec
30..90 V
2..70 V
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
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 pre-
ceding text.
"!%/. $5F\FOH" (F.No. 2742) to "!%/. Q $5" (F.No. 2745)
The corresponding 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 busy with(inside) the cycle being
blocked. If the block signal of a cycle appears while this cycle is being executed (busy)
the automatic reclosure function is blocked dynamically; no further automatic
reclosures cycles are then executed.
"$5 &\F=RQH5HO" (F.No. 2889) to "$5 &\F=RQH5HO" (F.No. 2892)
The automatic reclosure function is ready for the corresponding 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.
Default Setting
NO Request for synchro-check after
3pole AR
NO 3pole TRIP by AR
Without Dead Line Check or Reduced
Dead Time
0.10 sec Supervision time for dead/ live
voltage
48 V Voltage threshold for live line or
bus
30 V Voltage threshold for dead line
or bus
YES AR with distance protection
YES AR with switch-onto-fault over-
current
YES AR with weak infeed tripping
YES AR with earth fault overcurrent
prot.
YES AR with direct transfer trip
YES AR with back-up overcurrent
Functions
Comments
6-177