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Siemens AG ⋅ May 1998
6.2.3.5 Configuration of the busbar - block 49
For the purpose of performing the configuration of the
busbar in a clear and effective manner, the application
of the communication program "DIGSI" is recomĆ
mended.
The 7SS52 is designed for a maximum of 12 bus secĆ
tions (protection zones) BZ1 to BZ12 (incl. a maxiĆ
mum of 4 transfer bus sections).
Figures 5.6 and 5.7 show two different busbar confiĆ
gurations with their corresponding design data as exĆ
amples.
In addition, a maximum of 12 bus coupler sections
CS1 to CS12 (sections which serve exclusively for
coupling of busbar sections) can be configured (CS1
to CS12 may not contain feeder bays).
For configuration (entering data) the bus zones are
counted consecutively from left to right, starting with
the first main bus up to the transfer bus or the fourth
main bus, from 1 to 12. In the same way the coupler
sections are counted from 13 to 24. For each main
bus the number of corresponding bus sections and
coupler sections is defined.
Y
B
4 9 0 0 C O N F I G U R A T :
= B B – C o n f i g u r a t . ?
"
A
4 9 0 1 B B / B Z o r A u x Z
= B Z 0 1 / B Z 0 1
"
A
4 9 0 2 B B / B Z o r A u x Z
= n o n e x i s t e n t
to
"
A
4 9 2 4 B B / B Z o r A u x Z
= n o n e x i s t e n t
Parameters DA 4901/ZE to DA 4924/ZE are only utiliĆ
zed by the communication software DIGSI and have
no influence on the protection function. DIGSI allows
a graphical display of the plant configuration based on
the input data.
Input: display indication
0 = non existent
1 - 4.01 - 12 = BB01 to BB04/BZ01 to BZ012
1 - 4.13 - 24 = BB01 to BB04/AB01 to AB12
minimum setting: 0.00...............
maximum setting: 4.24...............
The maximum plant configuration contains 4 main
busbars,12 bus sections und 12 bus coupler sections.
Legend:
BB (main busbar number) = 01 to 04
BZ (bus zone number) = 01 - 12
AUXZ (coupler section number) = 13 - 24
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