Applying The Function Parameter Settings - Siemens siprotec 7SA6 User Manual

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OFF
„1" ECHO only
ECHO and TRIP
Dist. OFF/BLOCK
&
O/C VTsec lost
&
O/C OFF/BLOCK
Dis. PICKUP
O/C PICKUP
from rec. logic (Figure
6-48, 6-50 or 6-52)
4040 >Dis.T.BlkEcho
CB open (3pole)
Figure 6-59 Logic diagram of the echo function with distance protection teleprotection
6.4.2

Applying the Function Parameter Settings

General
7SA6 Manual
C53000-G1176-C133-1
Echo release by earth fault
(refer also to Figure 6-78)
≥1
≥1
≥1
S Q
&
R
The distance protection teleprotection supplement is only in service if it is set during
the configuration to one of the possible modes of operation in address .
Depending on this configuration setting, only those parameters that are relevant to the
selected mode of operation will appear here. If the teleprotection supplement is not
required, address  is 7HOHSURW 'LVW = 'LVDEOHG.
The following teleprotection schemes are available:
− 3877 3LFNXS
− 3877
− 3277
− 'LUHFWLRQDO
&RPSDULVRQ
3LFNXS
− 8QEORFNLQJ
− %ORFNLQJ
protection
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≥1
T
&
&
&
Q
R
= Permissive underreach transfer trip with pickup, as
referred to in Subsubsection 6.4.1.1,
= Permissive underreach transfer trip with zone
acceleration Z1B, as referred to in Subsubsection
6.4.1.2,
= Permissive overreach transfer trip, as referred to in
Subsubsection 6.4.1.4,
= Directional comparison pickup,
as referred to in Subsubsection 6.4.1.5,
= Unblocking with Z1B, as referred to in Sub-section
6.4.1.6,
= Blocking scheme, as referred to in Sub-section 6.4.1.7,
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0
≥1
4246
T
20 0
S
ms
&
Functions
ECHO SIGNAL
6-97