Design Of The Thyristor Modules; Figure 3-2 Example: Clamped Thyristor Assembly Comprising 2 X 12 Thyristors And 2 X 13 Heat Sinks - Siemens SINAMICS SL150 6SL38655UM427AA02 Operating Instructions Manual

Description
3.3 Power unit
3.3.2.2

Design of the thyristor modules

Clamped thyristor stack for number of thyristors connected in series 1 and 2
A thyristor module consists of two clamped thyristor stacks. A clamped thyristor assembly
comprises 12 thyristors in "flatpacks" and 13 heat sinks.
①
Set of springs
②
Thyristor
③
Heat sink
④
Clamping bolt
Figure 3-2 Example: Clamped thyristor assembly comprising 2 x 12 thyristors and 2 x 13 heat sinks
The clamped thyristor assembly is pressed together by a set of springs with a clamping screw
in such a way as to achieve the required contact force.
The purpose of the heat sinks is to dissipate heat losses.
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SINAMICS SL150 6SL38655UM427AA02
Operating Instructions Rev.201910281507 EXAMPLE