Line Reactors; Description; Safety Instructions For Line Reactors - Siemens SINAMICS S120 Manual

3.8

Line reactors

3.8.1

Description

The line reactors limit low-frequency line harmonics and reduce the load on the rectifiers in
the Power Modules. They are used to smooth voltage spikes (line supply faults) or to bridge
voltage dips/interruptions when commutating. This is why we recommend that line reactors
are used in conjunction with Power Modules in the blocksize and chassis formats.
PM240-2 FSD to FSF Power Modules have an integrated DC link reactor - and therefore do
not require a line reactor.
3.8.2

Safety instructions for line reactors

Danger to life if the fundamental safety instructions and residual risks are not observed
Not observing fundamental safety instructions and residual risks stated in Chapter 1 can
result in accidents with severe injuries or death.
• Observe the fundamental safety instructions.
• Consider the residual risks for the risk evaluation.
Danger to life due to electric shock in the event of missing touch protection
Death or serious injury can result when live parts are touched.
• For the line reactors, use touch protection according to IPXXA or corresponding to the
Danger of fire through overheating for insufficient ventilation clearances
Insufficient ventilation clearances can result in overheating with danger to persons as a
result of smoke and fire. Further, increased failures can occur and the service life of
components shortened.
• Maintain 100 mm ventilation clearances above and below the component.
AC Drive
Manual, (GH6), 07/2016, 6SL3097-4AL00-0BP5
WARNING
DANGER
local installation regulations.
WARNING
Mains connection and line-side power components
3.8 Line reactors
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