Synchronous machines

Details Synchronous machines Synchronous machines

H - Electricity

02

K

310/91

H02K 1/24 (2006.01) H02K 19/38 (2006.01)

Patent

CA 1108213

ABSTRACT This invention relates to brushless A.C. exciters for rim-type hydro-electric generators. The usual construction of brushless A.C. exciters has a rotating armature having ring punchings or, in the case of larger diameter exciters, a core built up of over- lapping layers of punching segments clamped between endplates. To overcome several disadvantages inherent in the usual construction the present invention describes a brushless A.C. exciter comprising a stationary field pole system and an annular rotating armature comprising a series of independently wound separate segments independ- ently mounted on the generator rotor with gaps between the segments. Each segment comprises an independently wound and impregnated core section independently mounted on a bracket system carried by the generator rotor.

312716

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