Beam support for bar windings of large electric generator

Details Beam support for bar windings of large electric generator Beam support for bar windings of large electric generator

1984-09-28

1986-04-22

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310 43, 310254, H02K 348

Patent

active

045844976

ABSTRACT:
A stator of a large generator includes three potential, or "P" bars, disposed in slots atop the armature conductors in three of the stator slots. The "P" bars are part of a self-excitation system for producing DC excitation power for the rotating field of the generator. At least the stator slots containing the "P" bars include a pair of dovetail slots spaced radially closer to the air gap than the dovetail slots in the remaining stator slots used for securing armature conductor bars in stator slots. The inner end of a beam is fitted into the dovetail slot over the "P" bar. A yoke is secured over the outer end of the beam. The yoke is secured to studs in space block extensions positioned adjacent the stator slot containing the "P" bar. A ripple spring between the beam and the "P" bar applies a radial force to securely retain the "P" bar and the armature conductor bars in the slot.

REFERENCES:
patent: 3243622 (1966-03-01), Whittlesey
patent: 3479543 (1969-11-01), Drexler
patent: 3780325 (1973-12-01), Frankenhauser
patent: 3949255 (1976-04-01), Brown
patent: 4149101 (1979-04-01), Lesokhin
patent: 4369389 (1983-01-01), Lambrecht
patent: 4377764 (1983-03-01), Butman
patent: 4385252 (1983-05-01), Butman et al.
patent: 4443725 (1984-04-01), Derderian
GENERREX-PPS (Potential Power Source) Excitation System for Wisconsin Power & Light, Edgewater 5, G. M. Cotzas et al, 43rd Annual American Power Conference, Chicago, Illinois, Apr. 27-29, 1981.

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