Siemens 6MD85, Manual

Page: 207 / 1256

In this example, the pickup and operate indications of the protection functions are exchanged in the direction
of the Circuit-breaker function group.
You must connect the Voltage 3-phase function group with the Circuit-breaker function group. This assign-
ment can be made in DIGSI only via Project tree → Connect function group. To connect the interfaces, set a
cross at the intersection between the row and column in the matrix.
[sc3span2-190214-01, 1, en_US]
Figure 5-15 Connecting Voltage 3-Phase Function Group with Circuit-Breaker Function Group
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 5-4 Operational Measured Values of the Voltage 3-Phase Function Group
Measured Values Primary Secon-
dary
% Referenced to
V
A
, V
B
, V
C
Phase-to-ground voltages kV V Operating rated voltage of primary values/√3
V
AB
, V
BC
, V
CA
Phase-to-phase voltage kV V Rated operating voltage of the primary values
V
0
Zero-sequence voltage kV V Operating rated voltage of primary values/√3
V
NG
Neutral-point displacement
voltage kV V Operating rated voltage of primary values/√3
f Frequency Hz Hz Rated frequency
Application and Setting Notes
i
i
NOTE
Before creating the protection functions in the function group, you should first connect hese functions to
the appropriate Circuit-breaker function group.
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.
Settings
Addr. Parameter C Setting Options Default Setting
Rated values
_:9421:102 General:Rated voltage 0.20 kV to 1200.00 kV 400.00 kV
5.4.3
5.4.4
Function-Group Types
5.4 Function-Group Type Voltage 3-Phase
SIPROTEC 5, High-Voltage Bay Controller, Manual 207
C53000-G5040-C015-9, Edition 11.2017