GEORGE H VOGT
Engineering in Topsfield, MA
License number
Massachusetts 7410
Expiration Date
Jun 30, 1986
Type
Mechanical Engineer
Address
Address
Topsfield, MA 01983
Professional information
Sub-Slot Cover For Generator Field
US Patent:
4321498, Mar 23, 1982
Filed:
Apr 17, 1978
Appl. No.:
5/896721
Inventors:
George H. Vogt - Topsfield MA
Assignee:
General Electric Company - Lynn MA
International Classification:
H02K 334
US Classification:
310215
Abstract:
The rotating field of a dynamoelectric machine comprises a rotor having electrically conductive windings extending along the axial length of the rotor. The windings are disposed in axially extending slots and the slots include electrical insulation for preventing the transfer of electric current between the windings and the rotor body. A direct cooled generator field is one which is cooled by the atmosphere surrounding the field; e. g. , hydrogen or air, and is designed so that the gas coolant is pumped radially through the windings and axially through sub-slots in the rotor body. The present invention is concerned with sub-slot covers which are designed to improve the electrical insulating properties of the cover by increasing the electrical path length between the windings and the rotor body and by obviating the formation of electrical paths due to the possible accumulation of foreign material.