Operation Of The Line Connection Components Via An Isolating Transformer - Siemens SINAMICS Series Equipment Manual
Booksize power modules
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Also See for SINAMICS Series:
- Operating instructions manual (759 pages) ,
- Function manual (102 pages) ,
- Quick install manual (2 pages)
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2.8.4
Operation of the line connection components via an isolating transformer
The isolating transformer converts the network configuration of the system (e.g. IT/TT
system) to a TN system. Additional voltage adaptation to the permissible voltage tolerance
range is possible.
An isolating transformer must be used in the following cases:
• The motors are not approved for use in IT/TT systems.
• A residual-current circuit-breaker is required.
• The installation altitude is higher than 2000 m.
• A line filter is envisaged in an IT/TT system.
Equipment Manuel for Booksize Power Modules
Manual, (GH2), Edition 06.2005, 6SL3097-2AC00-0BP2
Caution
If the supply voltage is greater than 480 V +10%, an autotransformer must not be used.
An isolating transformer must be used to ensure safe electrical separation.
Line Connection Booksize
2.8 Line connection variations
2-37
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