Siemens Energy, Inc.

Siemens Power Generation, Inc.

Thomas M Majernik

George F Dailey

James Alan Bauer

John Barry Sargeant

David Thomas Allen

Robert Alan Ward

Alex Christodoulou

James Allan Cook

David Earl Hulsey

Jeffrey Neal Lankford

Greyson L Mellon

James Allen Cook

Curtis E Bass

Bradley Graves Bardsdale

Donnie R Hartman

Kenneth E Larson

Rex Joel Baker

Henry Mason Holly, Iii

Thomas L Schuchart

David Bruce Berrong

James Alan Cook

The present invention provides an apparatus for the horizontal stacking of laminationsand donuts to form a stator core. A stator generator framehas multiple keybarsthat run the axial length of the frame. The laminationshave groovesthere-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybarsthese extensionsmay be used as rails on which the laminations may be horizontally inserted into the stator frame.

Horizontal assembly of stator core using keybar extensions

In one embodiment the present invention provides for a method for checking the alignment of a stator core that comprises placing a laser sourceand a targeta given distance apart on a stator coreand activating the laser such that the laser strikes the target. Then measuring on the target where the laser strikes, and interpreting the measurement to determine any misalignment of the stator core in the given distance.

Method and apparatus for checking stator core alignment

A header () for use with an inner-cooled half coil () in a stator phase winding of an electrical generator. The half coil may include a stack of cooling tubes () with a first stack of conductive strands () adjacent a first side of the stack of cooling tubes and a second stack of conductive strands () adjacent a second side of the stack of cooling tubes. A header () is conductively bonded () by brazing to each strand of the first stack of conductive strands () and to each strand of the second stack of conductive strands () for consolidating the first and second stacks of conductive strands. A means () for allowing a coolant to flow through the header () may be provided to allow coolant to flow through the stack of cooling tubes (). The means () for allowing coolant to flow through the header () may include a plurality of apertures () that are aligned with respective ones of the stack of cooling tubes () for inspecting the cooling tubes through the apertures. Conductive connectors () may be attached to and removed from the header without affecting the consolidation of the conductive strands.

Apparatus and method for consolidating conductive strands of a stator coil

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Pittsburgh, PA, United States of America

Thomas M Majernik