Electric synchronous machine having slip rings arranged outside

Details Electric synchronous machine having slip rings arranged outside Electric synchronous machine having slip rings arranged outside

1996-01-25

1998-04-14

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 75R, 310 96, H01R 3908

Patent

active

057396183

ABSTRACT:
In the case of thermal power installations in which a gas turbine and a steam turbine jointly drive a turbo generator, the slip rings (8, 9) are arranged on a separate slip ring shaft (14) which is connected to the actual shaft or machine shaft (10) of the electric machine by means of a first detachable coupling (11). The slip ring shaft is provided on its end averted from the electric machine with a coupling flange (15) which is not connected to the slip ring shaft (14) by welding until after the slip rings (8, 9) have been pushed on.
The use of an expensive shrink-on coupling between the turbo generator and steam turbine is avoided in this way without increasing the overall length of the turbo generator.

REFERENCES:
patent: 4119873 (1978-10-01), Sakurai
patent: 4347453 (1982-08-01), Gaus
patent: 4447752 (1984-05-01), Boyce et al.
patent: 4618793 (1986-10-01), Shizuka et al.
patent: 5281880 (1994-01-01), Sakai
Wiedermann, Eugen and Walter Kellenberger; Konstrucktion elekrischer aschinen (1967), pp. 392-393.

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