Abstract: A method for producing a flexible tooling liner for casting a ceramic core is presented. The method includes the steps of producing a three-dimensional (3D) reference object representative of a ceramic core to be cast, disposing the reference object into a containment vessel configured to receive a liquid flexible tooling material, filling the containment vessel with the liquid tooling material so that the reference object is encapsulated by the liquid tooling material on the surface whose topography is intended to be imparted, allowing the liquid tooling material to cure, and separating the cured flexible tooling along a parting surface into opposing portions and removing the reference the reference object.

Abstract: An intercoupled stator core is separated from a non-vertically oriented (including horizontal) generator frame by decoupling the stator core and frame coupling members and interposing a slidable member between them. Thereafter they are separated relative to each other on the sliding member. The sliding or slidable member may comprise a rail, or alternatively a roller adapted for rolling contact with one of the opposed stator core or generator structures and an engagement surface in contact with the other structure. A system for separating the stator core from a non-vertically oriented generator frame includes first and second raising end plates adapted coupled to axial ends of the stator core. The end plates project outwardly from the generator frame ends, for coupling to a raise mechanism. After the raise mechanism raises the stator core the slidable member is interposed between the stator core and generator frame.

Abstract: Removing a generator core (10) from a frame (24) includes removing electrical and mechanical connections between the core and components external to the frame; installing a lift support assembly (34, 38, 42, 46) outboard of the core at each of an exciter end and a turbine end of the frame; installing a pilot shaft support assembly (50, 70, 73) between an inner surface of a core bore (10D) and an outer surface (40A) of a pilot shaft (40) at each of the exciter end and the turbine end of the frame; installing the pilot shaft through the first and second pilot shaft support assemblies and the core bore, the pilot shaft supported by the lift support assembly at the exciter end and the turbine end; decoupling the core and the frame; and activating a force-producing device (90) to slide the core out of the frame.

Abstract: A generator is provided comprising: a frame; a stator core comprising laminations; and clamping structure to axially clamp the laminations together. The clamping structure may comprise: a plurality of first finger plates engaging a first end of the stator core; a first spacer plate associated with the first finger plates and including a plurality of spaced apart first recesses; a plurality of first engagement structures, each comprising a bolt and a corresponding slidable bushing; a first spring ring in engagement with the first engagement structures; and first load-applying structure coupled to the frame to imparts a load to the first spring ring.

Abstract: A spring bar assembly for connecting a stator core to a stator frame. The spring bar assembly includes an attachment member with a hole and a spring bar with a hole that aligns with the hole in the attachment member. A bolt passes through the hole in the attachment member and the hole in the spring bar, where the bolt is used to couple the attachment member to the spring bar.

Abstract: A spring bar that connects a stator core to a stator frame. The spring bar assembly includes an attachment member with a hole and a spring bar that tapers from a central region and that includes a hole at each end that aligns with the hole in the attachment member. A bolt passes through the hole in the attachment member and the hole in the spring bar, where the bolt is used to couple the attachment member to the spring bar.

Abstract: An insulated cover (10) for insulating at least two electrically-connected stator bar winding ends (18, 20) in a dynamoelectric machine. The cover (10) comprises a first member (12) for mating with a second member (14), a first interlocking structure (52) on a surface of the first member (12) and a second interlocking structure (50) on a surface of the second member (14). When the cover (10) is installed to insulate the bar winding ends (18, 20) by placing the first (12) and second (14) members in contact, the first (52) and second (50) interlocking structures positively lock to prevent relative displacement of the first (12) and second (14) members.

Abstract: An intercoupled stator core is separated from a non-vertically oriented (including horizontal) generator frame by decoupling the stator core and frame coupling members and interposing a slidable member between them. Thereafter they are separated relative to each other on the sliding member. The sliding or slidable member may comprise a rail, or alternatively a roller adapted for rolling contact with one of the opposed stator core or generator structures and an engagement surface in contact with the other structure. A system for separating the stator core from a non-vertically oriented generator frame includes first and second raising end plates adapted coupled to axial ends of the stator core. The end plates project outwardly from the generator frame ends, for coupling to a raise mechanism. After the raise mechanism raises the stator core the slidable member is interposed between the stator core and generator frame.

Abstract: Removing a generator core (10) from a frame (24) includes removing electrical and mechanical connections between the core and components external to the frame; installing a lift support assembly (34, 38, 42, 46) outboard of the core at each of an exciter end and a turbine end of the frame; installing a pilot shaft support assembly (50, 70, 73) between an inner surface of a core bore (10D) and an outer surface (40A) of a pilot shaft (40) at each of the exciter end and the turbine end of the frame; installing the pilot shaft through the first and second pilot shaft support assemblies and the core bore, the pilot shaft supported by the lift support assembly at the exciter end and the turbine end; decoupling the core and the frame; and activating a force-producing device (90) to slide the core out of the frame.

Abstract: A temporary rail system (12) is provided for installing a stator core (14) in a generator frame (16). The rail system includes rail assemblies (18, 20, 22, 24), where each rail assembly includes support pieces (19, 21, 23) axially positioned at a circumferential location (26, 28, 30, 32) along frame rings (34, 36, 38, 40, 42) of the frame. The rail assembly also includes fasteners (48) to secure the support pieces to the circumferential location. The rail assembly also includes lifting assemblies (52) positioned on each support piece, a support beam segment (62, 64) positioned on each lifting assembly, and a rail segment (66, 68) positioned on each support beam segment such that a rail (69) including the rail segments is axially positioned along the support pieces of the rail assembly.