Dc Link Components Booksize; Braking Module Booksize; Description - Siemens SINAMICS S120 Equipment Manual

DC Link Components Booksize

5.1

Braking module booksize

5.1.1

Description

Braking modules can be used to reduce the DC link energy in supply systems without
regenerative feedback capability (diesel generator) during controlled braking (e.g.
emergency retraction) or for fast discharging of the DC link. The DC link energy is converted
to heat loss in an external braking resistor. Several braking modules can be connected in
parallel (no more than one braking module per 500 µF DC link capacitance; the DC link
capacitances are given in the relevant technical specifications).
Using braking resistors, the heat loss can be dissipated outside the cabinet. The cable
between the braking module and the braking resistor is limited to 10 m.
Booksize Power Sections
Equipment Manual, (GH2), 04.2004 Edition, 6SL3097-2AC00-0BP0
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5-1