Roger Lee Daugherty

US Patent:

41997000, Apr 22, 1980

Filed:

Jul 31, 1978

Appl. No.:

5/929587

Inventors:

Roger H. Daugherty - Wilkinsburg PA
Warren W. Jones - Bullskin PA
Roger L. Swensrud - Plum Borough PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H02K 1100

US Classification:

310 71

Abstract:

A dynamoelectric machine utilizing stiff, multiple component phase leads for connecting potentially misaligned stator coils and parallel phase rings. The phase leads, when attached to stator coil and phase ring coolant headers, provide electrical communication therebetween. The first and second phase lead components have a hole and cylindrical portion respectively wherein the cylindrical portion is insertable in the hole. Such phase lead hole has a longitudinal axis perpendicular to both slot elongation directions. Intimate electrical contact between the phase lead components and their connected coolant headers is insured by disposidng solder between their mateable, plane surfaces. Intimate electrical contact between the phase lead components is insured by brazing the components together at the interface between the assembled cylindrical portion and hole. Translational misalignment between the connectable phase ring and coil is accommodated in the three perpendicular directions by providing the slotted openings and permitting insertion of the cylindrical phase lead portion into the phase lead hole for selected distances. Such selective insertion is obtained by supplying extra stock to the cylindrical phase lead portion and trimming that portion to the appropriate length at assembly time.

US Patent:

40781500, Mar 7, 1978

Filed:

Aug 4, 1976

Appl. No.:

5/711335

Inventors:

Roger H. Daugherty - Wilkinsburg PA
Roger L. Swensrud - Plum Borough PA

Assignee:

Westinghouse Electric Corporation - Pittsburgh PA

International Classification:

H01B 1754
H01B 1726

US Classification:

174 15BH

Abstract:

A stud for a terminal bushing is cooled by a liquid flowing through a spiral groove formed in a juncture of telescoping tubular members utilized to form the conducting stud of the terminal bushing.

US Patent:

41722434, Oct 23, 1979

Filed:

Jun 10, 1977

Appl. No.:

5/805367

Inventors:

Roger H. Daugherty - Wilkinsburg PA
Roger L. Swensrud - Plum Borough PA
Michael R. Jugan - Duquesne PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01F 2710

US Classification:

336 60

Abstract:

Disclosed is an electrical transformer having a core and coil assembly mounted in a hollow case and a method of manufacturing the case. The hollow case has cast at least one cooling duct within it. Each cooling duct is a hollow tube, formed into a loop, with its ends brazed into a manifold. The manifold has nipples brazed into it which provide a connecting passage for the flow of coolant through the nipples into the manifold and through the tubes that have been cast within the transformer case.

US Patent:

41729846, Oct 30, 1979

Filed:

Aug 15, 1977

Appl. No.:

5/824595

Inventors:

Roger H. Daugherty - Wilkinsburg PA
Roger L. Swensrud - Plum Borough PA
Michael R. Jugan - Duquesne PA

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H02K 1100

US Classification:

310 71

Abstract:

A fluidly cooled flat plate neutral bus for electrically connecting the neutral bushings on dynamoelectric machines. The current carrying flat plate is in heat transmissive contact with a coolant carrying conduit which transfers heat generated in the neutral bus to the coolant flowing therethrough. The fluidly cooled flat plate neutral bus provides high heat flux while occupying a small volume. BACKGROUND OF THE INVENTION 1. Field of the Invention: This invention relates to the neutral bushings on dynamoelectric electric machines, and more particularly to means for electrically connecting those neutral bushings and means for cooling the electrically connecting means. 2. Description of the Prior Art: Large turbine generators often have several (three for a three-phase machine) neutral lead bushings which are electrically connected by a bus. Several schemes have been utilized in the past to remove the heat generated in the bus as a result of the current flow therethrough during generator operation.