Line Reactors For Basic Line Modules; Description; Safety Information - Siemens SINAMICS S120 Manual

2.4

Line reactors for Basic Line Modules

2.4.1

Description

Line reactors limit low-frequency line harmonics and reduce the load on the semiconductors
in the Basic Line Modules. A line reactor must be used in connection with a line filter or if
several Basic Line Modules are operated in parallel.
If a Basic Line Module is operated singly and no line filter is used, and with an effective line
impedance uk > 3%, the line reactor is not necessary.
2.4.2

Safety information

NOTICE
Maintain ventilation clearances
The 100 mm ventilation clearances above and to the side of the components must be
observed.
Note
Cable lengths
The connecting cables to the Line Module must be kept as short as possible (max. 5 m).
NOTICE
Use only approved line reactors
When using line reactors that have not been approved by SIEMENS for SINAMICS, the
following can occur:
• The Basic Line Modules may become damaged/faulty.
• Line harmonics may interfere with or damage other loads connected to the same line
Hot surfaces
The surface temperature of the line reactors can exceed 80° C.
Chassis power units
Manual, (GH3), 01/2013, 6SL3097-4AE00-0BP3
supply.
CAUTION
Line-side power components
2.4 Line reactors for Basic Line Modules
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