Operation Of The Line Connection Components Via An Autotransformer - Siemens SINAMICS S120 Equipment Manual
Booksize cold-plate power units
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Line connection
4.13 Line connection variants
4.13.3
Operation of the 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 isolating transformer must be used for voltages greater
than 3-ph. AC 480 V AC +10 %.
Applications:
● The motor insulation must be protected from excessive voltages.
● The active line module must provide a stabilized DC link voltage. This is possible with a
102
DANGER
rated voltage of 380 V to 415 V.
A combination with motors that may be operated with a DC link voltage of up to 660 V,
and a line voltage > 415 V requires a controlled DC link voltage.
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
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