General Electric Company

Robert Timothy Lembke

Michael Patrick Manning

Alan Michael Iversen

Robert John Nygard

Larry Steven Rosenzweig

Mark Markovitz

James Rollins Maughan

James Oldham Lambert

Daniel R Tommasone

Celia Ann Dieterich

A brazed joint between an armature bar strand package and an end fitting is provided where a plurality of solid strands and a plurality of hollow strands are arranged in an array. The plurality of hollow strands have free ends that extend axially beyond corresponding free ends of the solid strands. A cavity in the end fitting is accessed by an opening, and the free ends of the plurality of hollow and the corresponding free ends of the solid strands extend through the opening into the cavity. A braze alloy joins the free ends of the plurality of hollow strands and the corresponding free ends of the plurality of solid strands to each other and to interior surfaces of the end fitting, wherein the braze alloy does not extend substantially beyond the free ends of the solid strands. A related method of forming the brazed joint is also disclosed.

Corrosion-resistant liquid-cooled armature bar clip-to-strand connection and related method

A resistance temperature detector (RTD) unit includes an RTD assembly that is removably supported in a central chamber of a support assembly. In a preferred arrangement, the RTD assembly and the central chamber are arc shaped to facilitate removal from the support assembly and to maintain contact surface area. By providing a removable RTD assembly, costs are reduced over current RTD assemblies including two monitoring elements, and the RTD elements can be replaced without dismantling the top bar connections.

Resistance temperature detector assembly and method of fabricating same

A method of creating a brazed joint between a plurality of solid and hollow strands of a stator bar and a stator bar end fitting comprising the steps of:

Brazing procedure for generator liquid cooled stator bars

The method includes sealing the stator bar end connections from within the stator bar end fitting. Particularly, a low viscosity epoxy is initially applied from within the chamber of the end fitting by use of a boroscope and a syringe-type applicator, the low viscosity epoxy being applied to all joints between the adjacent strands of the stator bar and between the fitting and the outermost strands of the stator bar. A high viscosity epoxy is then applied over the low viscosity epoxy using the boroscope and applicator to provide a thick barrier seal between the liquid coolant in the chamber and the brazing material. The epoxy is then cured. The process ensures that the brazing material is isolated from the liquid coolant by the barrier seal whereby potential leaks are prevented and partially developed leaks or leaks extant are arrested because sealant material is disposed at the liquid coolant/braze interface.

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Amsterdam, NY, United States of America

Robert Timothy Lembke