Method and arrangement in connection with slip-ring machine

Details Method and arrangement in connection with slip-ring machine Method and arrangement in connection with slip-ring machine

2006-05-16

2006-05-16

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S786000, C318S430000

Reexamination Certificate

active

07045987

ABSTRACT:
An arrangement and a method for starting a slip-ring machine, the arrangement comprising a frequency converter arranged to be connected between a supply network and a rotor of the slip-ring machine for controlling the slip-ring machine, and starting means for starting the slip-ring machine. The starting means are arranged between the frequency converter and the rotor of the slip-ring machine, whereby the frequency converter is arranged to control the magnitude of the current of the rotor of the slip-ring machine in connection with starting the slip-ring machine.

REFERENCES:
patent: 3683251 (1972-08-01), Pisecker
patent: 6448735 (2002-09-01), Gokhale et al.
patent: 297 16 971 (1998-01-01), None
patent: 1076228 (1967-07-01), None
patent: 2 011 198 (1978-12-01), None

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