Siemens 6SL3120-2TE21-0AA3

Line connection and line-side power components
3.11 Line connection variants
Booksize Power Units
144 Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
Special case:
When operating with only one supply at a transformer, the values may be reduced by the
factor 0.73.
S
K line
≥ 0.73 • 70 • P
n
(for Active Line Module and Smart Line Module)
S
K line
≥ 0.73 • 30 • P
n
(for Basic Line Module)
For example S
K line
for 16 kW Active Line Module: S
K line
= 0.82 MVA = 820 kVA
The required rated power of the matching transformer can be calculated with the following
formula.
Note:
The short-circuit power at the plant connection S
K plant
plays a decisive role in dimensioning
the matching transformer.
From the rated power (S
n1
or S
n2
) calculated under a) and b), the higher value must be used
for the matching transformer.
Table 3- 29 Transformer configuration instructions
Rated power of the used
Active Module P
n
Required rated power of the
isolating transformer /
autotransformer
S
n
(1.27 • P
n
)
Required short-circuit
voltage U
k
Minimum system fault level
required
S
Kline
(70 • P
n
)
16 kW
≥ 21 kVA
≤ 3 %
≥ 1.12 MVA
36 kW
≥ 46 kVA
≤ 3 %
≥ 2.52 MVA
55 kW
≥ 70 kVA
≤ 3 %
≥ 3.85 MVA
80 kW
≥ 102 kVA
≤ 3 %
≥ 5.6 MVA
120 kW
≥ 153 kVA
≤ 3 %
≥ 8.4 MVA
Rated power of the used
Smart Line Module P
n
Required rated power of the
isolating transformer /
autotransformer
S
n
(1.27 • P
n
)
Required short-circuit
voltage U
k
Minimum system fault level
required
S
Kline
(70 • P
n
)
5 kW
≥ 6.4 kVA
≤ 3 %
≥ 0.35 MVA
10 kW
≥ 13 kVA
≤ 3 %
≥ 0.7 MVA
16 kW
≥ 21 kVA
≤ 3 %
≥ 1.12 MVA
36 kW
≥ 46 kVA
≤ 3 %
≥ 2.52 MVA
55 kW
≥ 70 kVA
≤ 3 %
≥ 3.85 MVA
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