Functions
6-199
7SA6 Manual
C53000-G1176-C156-2
The close command can be transmitted by a teleprotection scheme using the protec-
tion interfaces (ordering variant). When the annunciation
AR Remote Close
is out-
put, this information is transmitted at the same time to the remote end via the protec-
tion data interface. The information is OR-combined with the information of the binary
input
>AR RemoteClose
and made available for the automatic reclosure. (Figure 6-
105).
Connecting an
External Reclosure
Device
If the 7SA6 has to work with an external reclosure device, the binary inputs and out-
puts provided for this purpose must be taken into consideration. The following inputs
and outputs are recommended:
Binary inputs:
383
>Enable ARzones
With this binary input the external reclosure device
controls stages of the individual short-circuit protection
functions which are active before reclosure (e.g. overreach-
ing zone in the distance protection). The input can be omit-
ted if no overreaching stage is required (e.g. distance pro-
tection with comparison mode, see also above under sub-
title “Selectivity before Reclosure”).
382
>Only 1ph AR
The external reclosure device is only programmed for 1-
pole; the stages of the individual protection functions that
are activated before reclosure via F.No.
383
only do so in
the case of single-phase faults; in the event of multiple
phase faults these stages do not operate. This input is not
required if no overreaching stage is used (e.g. differential
protection or comparison mode with distance protection,
see also above under subtitle “Selectivity before Reclos-
ure”).
381
>1p Trip Perm
The external reclosure device allows 1-pole tripping (logic
inversion of 3-pole coupling). If this input is not assigned or
not routed (matrix), the protection functions trip 3-pole for all
faults. If the external reclosure device cannot supply this
signal but supplies a “3-pole coupling” signal instead, this
must be taken into account in the routing of the binary inputs
(see section 5.2): The signal must be inverted in this case
(L–active = active without voltage).
Binary outputs:
501
Relay PICKUP
Start of protection device, general (if required by external
recloser device).
515
Relay TRIP 3ph.
trip protective device 3-pole,
512
Relay TRIP 1pL1
trip protective device 1-pole phase L1.
515
Relay TRIP 3ph.
trip protective device 3-pole,
513
Relay TRIP 1pL2
trip protective device 1-pole phase L2.
515
Relay TRIP 3ph.
trip protective device 3-pole,
514
Relay TRIP 1pL3
trip protective device 1-pole phase L3.
In order to obtain a phase-segregated trip indication, the respective single-pole trip
commands must be combined with the three-pole trip command on one output.
Figure 6-106 for example shows the interconnection between a 7SA6 and an external
reclosure device with a mode selector switch.
Содержание siprotec 7SA6
Страница 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Страница 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Страница 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Страница 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Страница 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Страница 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Страница 559: ...Control During Operation 7 45 7SA6 Manual C53000 G1176 C156 2 Figure 7 45 Circuit breaker trip test in DIGSI 4 ...
Страница 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Страница 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Страница 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Страница 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...