Rotor of an electric machine having an exciting current supply l

Details Rotor of an electric machine having an exciting current supply l Rotor of an electric machine having an exciting current supply l

1992-08-19

1993-08-31

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310261, 174176, H02K 1100

Patent

active

052412318

ABSTRACT:
In large electric machines, the electrical connection between the exciter supply lead (7, 8), which extends axially in the center of the rotor, and the exciter winding conductors (4) in the winding overhang (3) of the rotor is highly stressed electrically and mechanically. If use is made of an elastic exciter terminal stud (13) made from steel, and the connecting conductors (17, 18) are supported between the exciter terminal stud (13) and the conductors (4) of the rotor winding overhang on the rotor cap, preferably on its cap plate (6), excessive stresses occur neither on the shaft (2) nor on the connecting conductors (17, 18). It is preferable in this arrangement to make use of a terminal stud (13) that is slotted in the longitudinal direction of the stud and has at least three slots. Such a stud is elastic transversely to its longitudinal direction and can be purposively cooled.

REFERENCES:
patent: 3457440 (1969-07-01), Horsley
patent: 3733502 (1973-05-01), Curtis et al.
patent: 4074155 (1978-02-01), Haditsch et al.
patent: 5122696 (1992-06-01), Shih et al.

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