Operation Via An Isolation Transformer - Siemens SINAMICS S120 Combi Equipment Manual

Line-side power components
2.8 Line connection versions
Table 2- 9 Autotransformers for 220 V input voltage
Rated power [kVA]
Autotransformer IP00
Input voltage [V]
Output voltage [V]
Vector group
Permiss. ambient temperature
Operation [°C]
Humidity rating in accordance with
DIN EN 60721-3-3
Degree of protection to EN 60529
(IEC 60529) IP00
Order No.:
Power loss [W]
Autotransformer IP00
Short-circuit voltage u [%]
k
Conn. cross-section, max.
primary/secondary sides
Fuse, primary side
Weight [kg], approx. for
Degree of protection IP00
Terminal arrangement
2.8.3.4

Operation via an isolation transformer

Operating line connection components via an isolating transformer
The isolating transformer converts the line supply type of the plant or system (e.g. IT/TT line
supply) to a TN line supply. Additional voltage adaptation to the permissible voltage
tolerance range is possible.
An isolating transformer must be used in the following cases:
● The insulation of the Motor Module and/or the motor is not suitable for the voltages that
● There is no compatibility with an existing residual-current protective device.
● The installation altitude is higher than 2000 m above sea level.
● A line filter should be used in a line supply system that is not a TN line supply system with
CAUTION
If the line supply voltage is greater than 480 V +10 %, it is not permissible to use an
autotransformer.
An isolating transformer must be used to ensure protective separation.
54
21
3-ph. 220 V AC ± 10%; 50 Hz - 5% to 60 Hz + 5%
3-ph. 400 V AC
Yna0
-25 to +40, for power derating up to +55 °C, ISOKL: H, t
Cl. 3K5, Condensation and icing excluded
Low air temperature 0 °C (+32 °F)
Degree of protection IP00: _ → Order No. 0
4AU3696-0ER30-2XA0
550
≤ 1.5
16/16 mm
63 A gL
57
1U1 to 1W1 = 220 V input, 2U1 to 2W1 = 400 V output, N = neutral point
occur.
grounded neutral conductor.
S120 Combi Power Modules
16 kW
2
20 kW
46.5
= 40
a
4BU4395-0CB6_-8B
900
70/50 mm
2
160 A gL
110
SINAMICS S120 Combi
Manual, Edition 05.2010, 6SL3097-4AV00-0BP0