Operation Of The Line Connection Components Via A Transformer; Safety Information; Line Connection Conditions - Siemens SINAMICS S120 Combi Equipment Manual

Line-side power components
2.8 Line connection versions
2.8.3

Operation of the line connection components via a transformer

2.8.3.1

Safety information

CAUTION
The integrated infeed can be damaged/destroyed when using line filters that have not been
approved by SIEMENS for the SINAMICS S120 Combi Power Modules. Furthermore, line
harmonics can occur that damage/destroy loads connected to the same line supply.
It is not permissible to connect other loads after the line filter.
NOTICE
If the system fault level is too low, this can result in faults at the integrated infeed of the
SINAMICS S120 Combi Power Modules. It can also cause faults and damage to other
equipment and devices that are connected at the same line connection point as the S120
Combi Power Module.
Note
Using a transformer with the S120 Combi Power Module does not replace the external line
reactor.
2.8.3.2

Line connection conditions

The S120 Combi is approved for operation on line supplies from S
If a TN line supply is specified on the secondary side, then a transformer with grounded
neutral point must be used. However, the loop resistance must be small enough to trigger
the fuses as fast as required.
Vector group
Suggestion: Dyn0 or Yyn0; this means either a delta or star circuit on the primary side and
star circuit on the secondary side where the neutral point is brought-out.
46
/P ≥ 70.
K line n
SINAMICS S120 Combi
Manual, Edition 05.2010, 6SL3097-4AV00-0BP0