Abstract: An electrically insulating composition comprising about 25 to about 55 percent by weight of filler materials, about 45 to about 75 percent by weight of resin. The percentages being selected such that the total percentage of components does not exceed 100 percent. The composition has a thermal conductivity of about 0.2 to about 1.3 W/m-K when measured at 130° C.

Abstract: An electrically insulating composition comprising about 25 to about 55 percent by weight of filler materials, about 45 to about 75 percent by weight of resin. The percentages being selected such that the total percentage of components does not exceed 100 percent. The composition has a thermal conductivity of about 0.2 to about 1.3 W/m-K when measured at 130° C.

Abstract: A resin binder for use in formaldehyde emission-free stator insulation. The resin binder includes an epoxy, a catalyst, and a polymer material. The polymer material is hydroxyl-terminated. The resin binder is used in mica tape for groundwall insulation for stator windings.

Abstract: A stator bar includes a plurality of conductors and an insulation layer positioned about the plurality of conductors. The insulation layer includes multiple layers, and the multiple layers have one or more electrically insulating layer and one or more thermally conductive layer.

Abstract: A stator bar. The stator bar may include a number of conductors and an insulation layer positioned about the conductors. The insulation layer includes a ceramic component.

Abstract: A method for manufacturing a liquid-cooled stator bar suitable for use in a generator. The method includes providing a stator bar comprising a plurality of conducting strands collectively formed into a desired shape, wherein at least one of the conducting strands is configured to channel a liquid for cooling the stator bar. At least one layer of ground wall insulation is applied to the outer portions of the stator bar, and then at least one layer of a conductive tape is applied to an outer area of the ground wall insulation. The ground wall insulation and the conductive tape are cured.

Abstract: A stator bar. The stator bar may include a number of conductors and an insulation layer positioned about the conductors. The insulation layer includes a ceramic component.

Abstract: A stator bar. The stator bar may include a conductor, a layer of insulation positioned about the conductor, and a high thermal conductivity varnish to bond the layer of insulation to the conductor.

Abstract: A method for manufacturing a liquid-cooled stator bar suitable for use in a generator. The method includes providing a stator bar comprising a plurality of conducting strands collectively formed into a desired shape, wherein at least one of the conducting strands is configured to channel a liquid for cooling the stator bar. At least one layer of ground wall insulation is applied to the outer portions of the stator bar, and then at least one layer of a conductive tape is applied to an outer area of the ground wall insulation. The ground wall insulation and the conductive tape are cured.

Abstract: A high voltage generator armature bar (10) that exhibits improved performance by forming one or more of its conductive components from a conductive material that uses a tin oxide-based composition as a conductive filler. The armature bar (10) is of the type having one or more tiers of conductor strands (12), strand insulation (14), conductive internal grading (20), groundwall insulation (22), conductive slot armoring (24), and preferably a transposition filler (18). The conductive internal grading (20), the conductive slot armoring (24) and/or the transposition filler (18) contain a conductive filler of antimony-doped tin oxide that may constitute the entire conductive filler, or can be present as a shell on the filler particles.