Parameter Value Description
disk emulation
In the case of this setting, a dropout characteristic curve has to be set in
addition to the operate curve.
Select this setting if the device is coordinated with electromechanical
devices or other devices which perform a dropout after a disk emulation.
instantaneous
Select this setting if the dropout is not to be performed after disk emulation
but an instantaneous dropout is desired.
Parameter: Current/time value pairs (of the dropout characteristic curve)
With these settings, you define the characteristic curve. Set a current/time value pair for each characteristic-
curve point. The setting depends on the characteristic curve you want to realize.
Set the current value as a multiple of the threshold value. Siemens recommends that you set the Threshold
parameter to 1.00 in order to obtain a simple relation. You can change the threshold value setting afterwards
if you want to shift the characteristic curve.
Set the time value in seconds. The characteristic curve is shifted via the Time dial parameter.
NOTE
The value pairs must be entered in continuous order.
Parameter: 1-pole operate allowed
•
Default setting (_:11) 1-pole operate allowed = no
The parameter must be set for the specific application.
Parameter Value
Description
no
The stage always operates 3-pole.
yes
The stage operates phase-selectively. However, tripping by the device (gener-
ated in the trip logic of the Circuit-breaker function group) is always 3-pole
because the device does not support phase-selective tripping.
Parameter: Threshold (absolute)
•
Default setting (_:113) Threshold (absolute) = 0.000 A
With the Threshold (absolute) parameter, you define and change the absolute pickup threshold of the
stage without changing all points of the characteristic curve.
The parameter is only used for special applications. With the default setting, this functionality is disabled. You
can find more information in Pickup and Dropout Behaviors with the User-Defined Characteristic Curve ,
Page 349.
Settings
Addr.
Parameter C Setting Options Default Setting
General
_:1 User curve #:Mode
•
off
•
on
•
test
off
_:2 User curve #:Operate &
flt.rec. blocked
•
no
•
yes
no
_:11 User curve #:1-pole
operate allowed
•
no
•
yes
no
_:26 User curve #:Dynamic
settings
•
no
•
yes
no
6.3.6.3
Protection and Automation Functions
6.3 Overcurrent Protection, Phases
SIPROTEC 5, Overcurrent Protection, Manual 351
C53000-G5040-C017-8, Edition 07.2017
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