Application And Setting Notes; Settings - Siemens SIPROTEC 5 Manual

Function-Group Types
6.1 Function-Group Type Voltage 3-Phase
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Figure 6-3
If you add functions to the Voltage 3-phase function group, these are connected to the measuring point auto-
matically.
You connect the Voltage 3-phase function group to the voltage measuring points via the interface to the
measuring points. This assignment can only be made in DIGSI 5 via Project tree → Function group connec-
tions.
To connect the interfaces, set a cross at the intersection between the desired row and column in the matrix
(refer to Figure
Operational Measured Values
The operational measured values are always present in the Voltage 3-phase function group and cannot be
deleted.
The following table shows the operational measured values of the Voltage 3-phase function group:
Table 6-1
Measured Values
V , V , V Phase-to-ground voltages
A B C
V , V , V Phase-to-phase voltage
AB BC CA
V Zero-sequence voltage
0
V Neutral-point displacement
NG
voltage
f Frequency

Application and Setting Notes

6.1.3
Parameter: Rated voltage
•
Default setting (_:9421:102) Rated voltage = 400.00 kV
With the Rated voltage parameter, you set the primary rated voltage. The Rated voltage set here is
the reference value for the percentage-measured values and setting values made in percentages.
6.1.4

Settings

Addr.
Rated values
_:9421:102
138
Assigning Measuring Points
6-3).
Operational Measured Values of the Voltage 3-Phase Function Group
Primary Secon-
kV
kV
kV
kV
Hz
Parameter
General:Rated voltage
% Referenced to
dary
V Operating rated voltage of primary values/√3
V Rated operating voltage of the primary values
V Operating rated voltage of primary values/√3
V Operating rated voltage of primary values/√3
Hz Rated frequency
C Setting Options
0.20 kV to 1200.00 kV
Default Setting
400.00 kV
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017