Power supply management in paper-processing machines

Details Power supply management in paper-processing machines Power supply management in paper-processing machines

2005-04-19

2005-04-19

Han, Jessica (Department: 2838)

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

C307S059000, C323S267000

Reexamination Certificate

active

06882062

ABSTRACT:
A device for supplying voltage to an electrical machine, in particular a paper-processing machine, having a plurality of electric drives (11, 12, 21, 22, 32), electric drives (11, 12) of the same supply voltage being combined into one voltage level (14, 23, 33). The voltage supply device is characterized in that provision is made for a first DC voltage level (14) having electric drives (11, 12) as well as an electrical component (1, 13) for dissipating surplus electric energy, and provision is made for at least one second DC voltage level (23) which is connected to the first voltage level (14) via a bidirectional voltage transformer (2) and has further electric drives (21, 22), and one of the voltage levels (14, 23) is connected to the mains supply (4) via a voltage transformer (1).

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