Siemens Sivacon S8 Planning Information

54
SIVACON S8 Planning Principles – In-line design, plug-in
Tab. 5/12: Conversion factors for different ambient temperatures
All data refer to an ambient temperature of the switchgear
of 35 °C on 24 h average. Conversion factors for different
ambient temperatures are stated in Tab. 5/12.
Rating data and arrangement notes for the configuration of
in-line units and covers are given in Tab. 5/13. The in-line
switch-disconnectors are arranged in the cubicle either in
groups or individually in decreasing order from size 3 to
size 00. Blanking covers with vent slots are mounted in
between for ventilation.
Configuration rules
For the completely equipped cubicle, the RDF in accordance
with IEC 61439-2 applies. Non-observance of these notes
might result in premature ageing of fuses and their uncon-
trolled tripping due to local overheating. The permissible
operating current of all in-line units in the cubicle is limited
by the rated current of the vertical distribution busbar.
Ambient temperature of the
switchgear
20 °C 25 °C 30 °C
35 °C
40 °C 45 °C 50 °C 55 °C
Conversion factor
1.10 1.07 1.04
1.00
0.96 0.93 0.89 0.85
Tab. 5/13: Configuration rules for SASIL plus: arrangement of the in-line units in the cubicle
Size Grouping
Blanking covers 75 mm
with vent slots
Example
00
Summation current of
the group ≤ 319 A
One blanking cover each above
and below
1)
the group
Nominal
current
fuse:
80 A
100 A
160 A
Total:
Operating
current:
60 A
76 A
122 A
256 A
1
Summation current of
the group ≤ 365 A
One blanking cover each above
and below
1)
the group
Nominal
current
fuse:
250 A
250 A
Total:
Operating
current:
182 A
182 A
364 A
2
Not permissible
One blanking cover each above
and below
1)
the group
Nominal
current
fuse:
355 A
Operating
current:
288 A
3
Not permissible
Two blanking covers each
above and below
1)
the group
Nominal
current
fuse:
630 A
Operating
current:
510 A
1)
Below the bottommost in-line unit, only 75 mm blanking cover instead of 150 mm blanking cover or no blanking cover instead of 75 mm blanking cover required
In-line unit size 00
In-line unit
In-line unit
In-line unit size 00
In-line unit size 00
In-line unit size 1
In-line unit
In-line unit
In-line unit size 1
In-line unit size 2
In-line unit
In-line unit
In-line unit size 3
In-line unit
In-line unit

Siemens Sivacon S8 Specifications

General

Brand	Siemens
Model	Sivacon S8
Category	Industrial Equipment
Language	English