Application And Setting Notes; Settings; Information List - Siemens 7SJ82 Manual

Supervision Functions
9.3 Supervision of the Secondary System
Blocking of the Stage
In the event of blocking, the picked up function is reset. Blocking is possible externally or internally via the
binary input signal
9.3.8.4

Application and Setting Notes

Parameter: Reference voltage
•
Default setting Reference voltage = None
With the parameter Reference voltage, you can set a measured voltage as the reference voltage.
NOTE
i
i
You must assign a voltage measuring point to the parameter Reference voltage. The assignment influ-
ences the voltage-related protection functions which are used in the same FGs as the Voltage-comparison
supervision function. These voltage-related protection functions use the unassigned voltage measuring
point, which is defined as the main voltage in the Voltage-comparison supervision function. You can find
more information in section
EXAMPLE
Meas.point V-3ph 1 and Meas.point V-3ph 2 are connected to the Voltage-comparison supervision func-
tion. Then you have 2 more setting options, as shown in the following figure. You must select one of these
setting options for the parameter Reference voltage.
[sc_VBS_ref.voltage, 1, en_US]
Parameter: Mode
•
Default setting (_:2311:1) Mode = off
With the parameter Mode, you can activate and deactivate the Voltage-comparison supervision function. If
you switch to test mode, the Voltage-comparison supervision function is marked as invalid.
9.3.8.5

Settings

Addr.
VolCmpSup 1
_:2311:1
_:2311:101
9.3.8.6

Information List

No.
VolCmpSup 1
_:2311:81
1270
>Block stage .
Voltage Selection, Page
Parameter C
General:Mode
General:Reference
voltage
Information
General:>Block stage
1267.
Setting Options
•
off
•
on
•
test
Setting options depend on
configuration
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Default Setting
off
None
Data Class Type
(Type)
SPS I