Operating Line Connection Components Via An Autotransformer - Siemens SINAMICS S120 Combi User Manual

2.8.3.4

Operating line connection components via an autotransformer

An autotransformer can be used to adapt the voltage in the range up to 3-ph. 480 V AC +10
%.
To ensure protective separation an isolation transformer must be used for voltages greater
than 3-ph. 480 V AC + 10 %.
Application example:
● The motor insulation must be protected from excessive voltages.
SINAMICS S120 Combi
Manual, Edition 07/2012, 6SL3097-4AV00-0BP3
DANGER
Figure 2-12 Operation via an autotransformer
Line-side power components
2.8 Line connection versions
53