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1 Engineering SINAMICS S120 Booksize

1.3

Operation on a transformer

1.3.1

Safety information

Electric shock or fire due to overcurrent protective devices that trip too late

or not at all

Overcurrent protective devices that trip too late or not all can cause electric shock

or fire.

WARNING

Destruction or damage to additional loads as a result of undesirable line

harmonics

Line harmonics can occur if line filters that differ from those listed in the catalogs

and manuals are used. These can destroy or damage other loads connected to

NOTICE

the line supply. Conformance with IEC 61800-3 is only confirmed in conjunction

with the assigned line filters.

Destruction or damage to additional loads when incorrectly connected

Other loads can be destroyed or damaged when incorrectly connecting the line

filter.

NOTICE

If a transformer is used for Booksize Line Modules, this does not replace the

Note

external line reactor or the Active Interface Module.

Engineering manual S120 Booksize

Entry-ID: 109808992,

V1.0,

•

In the case of a conductor-conductor or conductor-ground short-

circuit, ensure that the short-circuit current at the point where the

converter is connected to the line supply corresponds as a

minimum to the requirements of the protective device used.

•

The short-circuit current must not exceed the SCCR or the ICC of

the converter and the interrupting capacity of the protective

equipment.

•

You must additionally use a residual current device (RCD) if, for a

conductor-ground short circuit, the required short-circuit current is

not reached. Especially for TT systems, frequently the required

short-circuit current cannot be reached as a result of an

excessively high loop impedance.

•

Only use the line filter specifically assigned to the device.

•

Connect additional loads upstream of the SINAMICS line filter (if

required, via a separate line filter).

04/2022