Siemens Power Generation, Inc.

Siemens Westinghouse Power Corporation

Siemens Energy, Inc.

Robert Alan Ward

Lon W Montgomery

Aleksandar Prole

Thomas M Majernik

David Earl Hulsey

Mehrzad Tartibi

Leonard Myatt

Sean Woosley

Viktor Kogan

Jeffrey Neal Lankford

Curtis E Bass

Henry Mason Holly, Iii

Rex Joel Baker

Kenneth E Larson

Anthony Dean Renda

Donnie R Hartman

Bradley Graves Bardsdale

Greyson L Mellon

In one embodiment the present invention is a Flexible Connector Assemblies (FCA)that comprises top and bottom plates connected by Flexible Connectors (FC)and provides a compliant electrical joint between the first terminal leadand the second terminal lead. These terminal leadsandare connected to the top and bottom plates eccentrically in such a way that the total currentthrough the FCA is more evenly distributed among the FCthan when the leads are centered on their respective plates. This improvement in uniformity reduces the maximum current carried by any one FC, which substantially extends the operating life of the component.

Eccentric polygonal main lead flexible connector assembly

A connector arrangement and techniques are provided for reducing eddy current losses and/or skin effects while enabling more readily serviceable series and phase connections between the coil endsandof a generator stator. This may be achieved by providing a connecting structurethat enables two parallel electrically conductive pathsandthat are electrically insulated from one another for passing a respective flow of electric current between the coil ends.

Bolted spherical series and phase connector for stator coils of electrical generators

The present invention comprises a U-bolt connector for connecting pairs of stator coil headerswith ball headerscomprising, a U-bolttop capping piecesbottom capping piecesa variable pieceand a tightening mechanismThe top capping piecessecure one ball connector in the pair of stator coil headers and the bottom capping piecessecure another ball connector in the pair of stator coil headers, while the variable pieceis disposed between the top capping pieces and the bottom capping pieces. The U-boltembraces the top capping piecesthe bottom capping piecesand the variable piecewhere the tightening mechanismholds the U-bolt tightly to the top capping pieces, the bottom capping pieces and the variable piece and is located at the end of the U-bolt.

Radially clamped ball and socket series and phase connector

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

In one embodiment the present invention is an MLB assemblythat is made up of two circular terminal conductor ends. Multiple finsradially extend from each of the two circular terminal conductor ends, and each fin on each of the two circular terminal conductor ends has a matching fin on the other of the two circular terminal ends. Multiple flexible connectorsare attached to the finsthat electrically connects the terminal conductors. The flexible connectorsalso allow for a difference of movement between the two circular terminal ends. Current flowing through the MBL assemblyis evenly distributedthrough the plurality of flexible connectors.

Method and apparatus for a multiple fin style current connector

A stator ( &prime;) for a power generator having a coil support finger plate ( &prime;) and associated methods are provided. The stator ( &prime;) preferably has a plurality of laminations or step irons having a plurality of spaced-apart stator coil slots ( &prime;) formed therein and stator coil slot contents ( ) positioned in each of the plurality of stator coil slots ( &prime;). The stator coil slot contents ( ) preferably include at least one stator coil ( ). The stator ( &prime;) also preferably has a coil support finger plate ( &prime;) positioned at an end portion of the plurality of stator coil slots ( &prime;). The coil support finger plate ( &prime;) has a base ( &prime;) and a plurality of fingers ( ) extending outwardly from the base ( &prime;) between the plurality of spaced-apart stator coil slots ( &prime;). The base ( &prime;) includes a stator slot contents support portion ( ) positioned to underlie end portions of the stator slot contents ( ) and to support the end portions of the stator coil slot contents ( ) thereon so that the stator slot contents support portion ( ) defines a stator slot bottom at the coil support finger plate ( &prime;).

Coil support finger plate for stator of power generator and associated methods

Growing community of inventors

Rockledge, FL, United States of America

Robert Alan Ward