L08, Motor Reactor - Siemens SINAMICS S120 Manual

Options

9.24 L08, motor reactor

9.24 L08, motor reactor
Availability of option
This option is available for the following S120 Cabinet Modules:
● Motor Modules
Description
Motor reactors reduce the voltage stress on the motor windings by reducing the voltage
gradients at the motor terminals that occur when motors are fed from drive converters. At the
same time, the capacitive charge/discharge currents that also occur on the output of the
Motor Module when long motor cables are used are reduced.
In addition, a motor reactor must be used for parallel connection of Motor Modules when a
motor with a single-winding system is being supplied and the required minimum motor cable
lengths cannot be maintained.
Option L08 is accommodated in a supplementary cabinet with a width of 600 mm, which is
arranged to the right of the Motor Modules.
Note
Maximum motor cable length
When motor reactors are used, the maximum motor cable length is 300 m (shielded) or 450
m (unshielded).
Note
Cabinet width
The width of the Motor Module cabinet is reduced by 200 mm. The additional components
are installed in a supplementary cabinet, 600 mm wide. The motor cables also connected in
this supplementary cabinet.
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Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A