Siemens 6MD85, Manual

Page: 204 / 1256

Parameter: Rated current
•
Default setting
(_:9421:101) Rated current
=
1000 A
The
(_:9421:101) Rated current
parameter is used to set the primary rated current of the protected
object. The
(_:9421:101) Rated current
specified here is the reference value for the percentage-meas-
ured values and setting values made in percentages.
Parameter: Rated voltage
•
Default setting
(_:9421:102) Rated voltage
=
400.00 kV
With the
Rated voltage
parameter, you set the primary rated voltage of the protected object. The
Rated
voltage
set here is the reference value for all voltage-related percentage values in the Circuit-breaker func-
tion group.
If you connect the Voltage-current 1-phase function group with the 1-phase measuring point, the following
applies:
•
With connection type V
AB
, V
BC
, V
CB
, or V
N
, you set the
Rated voltage
parameter as the phase-to-phase
voltage.
•
With the connection type V
A
, V
B
, V
C
, or V
N (broken-delta winding)
, you set the
Rated voltage
parameter as the
phase-to-ground voltage.
•
With the connection type V
X
, you set the
Rated voltage
parameter as either the phase-to-phase
voltage or the phase-to-ground voltage
Parameter: P, Q sign
•
Default setting
(_:9421:150) P, Q sign
=
not reversed
The power values are set at the factory so that power in the direction of the protected object is considered
positive. You can also define the power output by the protected object as positive. With the
P, Q sign
parameter, you can invert the signs of active and reactive power. This inversion has no effect on the protec-
tion functions.
Write-Protected Settings
The settings listed here are used primarily for understanding during configuration of the function groups. They
are calculated on the basis of other settings and cannot be directly changed.
Addr. Parameter C Setting Options Default Setting
Rated values
_:9421:103 General:Rated apparent
power -1.00 MVA to -1.00 MVA 0.00 MVA
Power-system data
_:9421:214 General:M I-1ph uses
MeasP with ID 0 to 100 0
_:9421:223 General:CT mismatch M
I-1ph 0.00 to 100.00 0.00
Settings
Addr. Parameter C Setting Options Default Setting
Rated values
_:9421:101 General:Rated current 1 A to 100 000 A 1000 A
_:9421:102 General:Rated voltage 0.20 kV to 1200.00 kV 400.00 kV
5.3.4
5.3.5
Function-Group Types
5.3 Function-Group Type Voltage/current 1-Phase
204 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017