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18 Operation principle and hardware description
Layout drawings
This section contains layout drawings of cubicles that are included in a supply unit.
The components, layout and size of the cubicles vary depending on the supply unit
size and selected options.
Supply unit
￭
This drawing shows an example of an IGBT supply unit. Cables enter the cabinet
through the bottom.
1.
Incoming cubicle (ICU). Contains the power input cable terminals and switchgear.
2.
LCL filter cubicle. Contains LCL filter(s).
3.
Supply module cubicle. Contains IGBT supply module(s) of frame size R8i.
4.
Auxiliary control cubicle. Contains control electronics and customer I/O connections.
1
2
3
4
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