Settings - Siemens siprotec 7SA6 User Manual

5.1.1

Settings

Addr. Setting Title
103 Grp Chge OPTION
110 Trip mode
7SA6 Manual
C53000-G1176-C133-1
The $5 &RQWURO 0RGH under address  allows a total of four options. You can
determine whether the sequence of automatic reclosure cycles is defined by the fault
situation of the pick-up of the starting protection function(s) (only for three-pole
tripping) or by the type of trip command . The automatic reclosure can also operate with
or without action time.
The 7ULS ZLWK 7DFWLRQ or 7ULS ZLWKRXW 7DFWLRQ command setting is
preferred when single-pole or single/three-pole automatic reclosure cycles are
planned and are possible. In this case different dead times (for every interrupt cycle)
are possible after single-pole tripping and after three-pole tripping. The tripping
protection function determines the type of tripping: single-pole or three-pole. The dead
time is controlled dependent on this.
Using the 3LFNXS ZLWK 7DFWLRQ or 3LFNXS ZLWKRXW 7DFWLRQ setting,
different dead times can be set for the auto-reclosure cycles after single, two and
three-phase faults. The fault detection configuration of the protection functions at the
time the trip command disappears is decisive. This operating mode also enables the
dead times to be made dependent on the type of fault for three-pole interrupt cycles.
Tripping is always three-pole.
The 7ULS ZLWK 7DFWLRQ setting provides an action time for every interrupt cycle.
This is started by the general starting signal (i. e. logic OR combination of all internal
and external start signals of all protection functions which are configured to start the
automatic reclosure function. If there is still no trip command when the action time
expired, the corresponding automatic reclosure cycle cannot be executed. See
section 6.12.1 for further explanations. For the time graded protection this setting is
recommended. If the protection function to operate with reclosure does not have a
general fault detection signal for starting the action times, select the setting 7ULS
ZLWKRXW 7DFWLRQ.
In address  )DXOW /RFDWRU for fault location the user determines not only the
settings (QDEOHG and 'LVDEOHG, but also the function that the fault distance is
directed via binary outputs as BCD-Code (4 bit units, 4 bit tens, 1 Bit hundreds as well
as "Data valid" (ZLWK %&'RXWSXW). The required number of output relays (FNo
 to  must therefore be available and allocated.
For the trip circuit supervision the number of trip circuits that shall be monitored is set
in address  7ULS&LUF6XSHUY with the following settings:  7ULS FLUFXLW,
 7ULS FLUFXLWV or  7ULS FLUFXLWV if they are required (Disabled).
According to the order variant the device is provided with analog outputs (0 to 20 mA).
2 outputs can be located on Port B (Mounting location "B"), another 2 on Port D
(mounting location "D"). In address  to  the user can select which analog
values shall be output. Some measured values and the location of the fault are also
available.
Setting Options
Disabled
Enabled
3pole only
1-/3pole
Default Setting
Disabled Setting Group Change Option
3pole only Trip mode
Configuration
Comments
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