Abstract: An improved generator rotor (30) and a method of repairing an existing generator rotor (12) are disclosed. Methods consistent with the present invention provide techniques for repairing existing stress-damaged rotors (12) to remove stress-induced cracks (29), without requiring new retaining rings (16), to significantly extend the useful life of a generator without the cost and complexity of conventional repair techniques. Improved generator rotors (30) consistent with the present invention provide a tooth-top design that is more resistant to stress-induced cracking than conventional designs, resulting in new generators with longer useful lives.

Abstract: An interconnecting assembly for a rotor assembly of a dynamoelectric machine is provided. The interconnecting assembly may be part of a conductive path generally extending from a radially inward section of the rotor assembly to a winding located at a radially outward section of the rotor assembly. The interconnecting assembly may be made up of a flexible member (44) comprising a bend (50). The interconnecting assembly may be further made up of a connector (70) connected to the flexible member to pass axial and radial forces that develop during operation of the machine. The positioning of the connector relative to the flexible member may be arranged so that an effect of an axial force on a radius of curvature of the bend and an effect of a radial force on that radius of curvature are opposed to one another. This leads to lower peaks of mechanical stress at the flexible member (44) (e.g.

Abstract: A joined assembly and kit for a rotor of a dynamoelectric machine are provided. The joined assembly is part of a conductive path generally extending from a radially inward section of the rotor to a radially outward section of the rotor. The conductive path includes a flexible connecting member from the radially inward section of the rotor to the joined assembly. The joined assembly includes a stacked winding energizable in response to excitation current carried by the conductive path to a top of the stacked winding located at the radially outward section of the rotor. The joined assembly further includes a connector with a first leg providing an electrically insulated mechanical point of contact relative to a bottom of the stacked winding.

Abstract: Fluorine gas discharge laser electrodes and electrode systems are disclosed that may comprise a plurality of current return tangs extending for less than the respective length of the second elongated gas discharge electrode. In addition disclosed are electrodes that may comprise a first discharge shaping magnet mounted in a first elongated gas discharge electrode and a second discharge shaping magnet mounted in a second elongated gas discharge electrode. This may also comprise at least one of the first and second gas discharge electrodes has imbedded therein a first and a second auxiliary field creating magnet.

Abstract: An improved generator rotor (30) and a method of repairing an existing generator rotor (12) are disclosed. Methods consistent with the present invention provide techniques for repairing existing stress-damaged rotors (12) to remove stress-induced cracks (29), without requiring new retaining rings (16), to significantly extend the useful life of a generator without the cost and complexity of conventional repair techniques. Improved generator rotors (30) consistent with the present invention provide a tooth-top design that is more resistant to stress-induced cracking than conventional designs, resulting in new generators with longer useful lives.

Abstract: A modular method of modeling a product using finite-element-modeling (FEM) software is disclosed that facilitates flexibility and reusability of FEM input-text files. In an exemplary embodiment, a user conceptually divides the product into segments (22, 24, 26). The user then identifies desired variations to the segments, which form the basis for a plurality of modules (27-38). The user then creates module-input-text files for each module and stores the files in a data processing system (10) for subsequent use. When the user wishes to model a particular variation of the product, the user selects the module-input-text files corresponding to that variation, inputs them into the FEM software, and defines the connectivity between the selected modules.

Abstract: A generator rotor lead path configuration includes a plurality of electrically conductive components attached to each other. These components may include a cleat and a wedge. The improved lead path inhibits, if not prevents, lead path failure. A method of assembling or fitting the lead path into a generator is also provided, as well as a method of replacing or retrofitting a lead path that is susceptible to failure with the improved lead path configuration. Assistance in determining causes of lead path failure and ways to overcome lead path failure are also provided.