Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1978-05-18
1980-07-01
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 71, H02K 132
Patent
active
042108349
ABSTRACT:
A water-cooled turbogenerator rotor mounted on a rotor shaft and having water-cooled end turn leads surrounded by a rotor end-bell and further having radial current-contact pins contacting ends of exciter current lines disposed in the rotor shaft, the pin being cooled by cooling water fed thereto through high-pressure insulating hoses from cooling-water distribution chambers provided on the rotor shaft, the pins being connectible at radially outer ends thereof to the water-cooled end turn leads disposed in slots formed on the rotor shaft and to the high-pressure insulating hoses, a device for cooling and electrically connecting the exciter current lines includes respective widened contact straps formed at respective ends of the end turn leads extending out from the rotor end bell and at the respective radially outer ends of the current-contact pins, the widened contact straps of the end turn leads and the current-contact pins being received in a slot formed in the surface of the rotor shaft and being in mutually abutting relationship, and a connecting strap overlying the widened contact straps and electrically, hydraulically and mechanically connecting the widened contact straps, the connecting straps being formed with cooling-water channels and means for connecting the cooling-water channels to the high-pressure insulating hoses.
REFERENCES:
patent: 3686522 (1972-08-01), Konovalov
patent: 3733502 (1973-05-01), Curtis
patent: 3878413 (1975-04-01), Madsen
patent: 3908140 (1975-09-01), Fidei
patent: 3916230 (1975-10-01), Albaric
patent: 3955111 (1976-05-01), Weghaupt
patent: 4066921 (1978-01-01), Blank
Krieger Gerhard
Weghaupt Erich
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Skudy R.
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