Parameter Value Description
on
Because of the application, it makes sense that the stage is only active (that
is, not blocked) when a certain current flow is present (see note).
off
Current flow monitoring does not make sense for the application.
NOTE
Because of the flexible setting options of the voltage measurand, the function itself does not determine the
current associated with the voltage. A suitable current-flow monitoring function must be created by the
user with the Continuous Function Chart (CFC), and connected to the binary input signal >Current
flow-criterion.
Operation as Supervision Function
If you want the tripping stage to have a reporting effect only, generation of the operate indication and fault
logging can be disabled via the Operate & flt.rec. blocked parameter.
Settings
Addr. Parameter C Setting Options Default Setting
General
_:2311:101 General:Current-flow
criterion
•
off
•
on
on
Stage 1
_:571:1 Stage 1:Mode
•
off
•
on
•
test
off
_:571:2 Stage 1:Operate &
flt.rec. blocked
•
no
•
yes
no
_:571:9 Stage 1:Measured value
•
VA measured
•
VB measured
•
VC measured
•
VAB measured
•
VBC measured
•
VCA measured
•
VAB calculated
•
VBC calculated
•
VCA calculated
•
V0 calculated
VA measured
_:571:8 Stage 1:Method of
measurement
•
fundamental comp.
•
RMS value
fundamental
comp.
_:571:3 Stage 1:Threshold 0.300 V to 340.000 V 80.000 V
_:571:4 Stage 1:Dropout ratio 1.01 to 1.20 1.05
_:571:6 Stage 1:Operate delay 0.00 s to 60.00 s 3.00 s
Stage 2
_:572:1 Stage 2:Mode
•
off
•
on
•
test
off
_:572:2 Stage 2:Operate &
flt.rec. blocked
•
no
•
yes
no
7.17.5
Protection and Automation Functions
7.17 Undervoltage Protection with Any Voltage
822 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
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