Siemens 6MD85, Manual

Page: 738 / 1256

Parameter:
Time dial
•
Default setting
(_:6) Time dial
=
0.2
You can use the
Time dial
parameter to displace the operate curve in the time direction.
General information cannot be provided. Define the value corresponding to the application.
Parameter:
Knee-point
•
Default setting
(_:101) Knee-point current
=
1.300 A
•
Default setting
(_:105) Knee-point time
=
23.60 s
You use the
Knee-point current
parameter and the
Knee-point time
parameter to define the knee-
point of the operate curve.
General information cannot be provided. Define the values corresponding to the application.
Parameter: Minimum Time of the Operate Curve
•
Default setting
(_:104) Min. time of the curve
=
0.80 s
•
Default setting
(_:102) Current at Min. time
=
1.500 A
Via the parameters
Min. time of the curve
and
Current at Min. time
, the point of the operate
curve is defined where higher currents do no longer cause shorter operate times.
General information cannot be provided. Define the value corresponding to the application.
Parameter: Maximum Time of the Operate Curve
•
Default setting
(_:103) Max. time of the curve
=
93.00 s
You can use the parameter
Max. time of the curve
to determine the initial value of the operate curve
(for 3I0 =
Threshold
).
General information cannot be provided. Define the value corresponding to the application.
Settings
Addr. Parameter C Setting Options Default Setting
General
_:1 Log.inv.T KP #:Mode
•
off
•
on
•
test
off
_:2 Log.inv.T KP #:Operate &
flt.rec. blocked
•
no
•
yes
no
_:108 Log.inv.T KP #:Direc-
tional mode
•
forward
•
reverse
forward
_:8 Log.inv.T KP #:Method
of measurement
•
fundamental comp.
•
RMS value
fundamental
comp.
_:107 Log.inv.T KP #:Direc-
tional comparison
•
no
•
yes
no
_:106 Log.inv.T KP #:Release
via input signal
•
no
•
yes
no
_:10 Log.inv.T KP #:Blk. by
meas.-volt. failure
•
no
•
yes
yes
_:27 Log.inv.T KP #:Blk. w.
inrush curr. detect.
•
no
•
yes
no
7.7.8.3
Protection and Automation Functions
7.7 Directional Overcurrent Protection, Ground
738 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017