General Electric Company

Other

Gary Lindsey Stewart

Richard Michael Hatley

Kenneth John Hatley

Roderick Mark Lusted

Waheed Tony Mall

Eric Steven Buskirk

Robert Martin Roney, Jr

Sean Michael McDonnell

Paul C Bagley

Michael John Bousquet

Stuart Alan Oliver

James Thaddeus Henley

Peter John McGrath

Joseph Alan Worden

Scott Andrew Wheeler

Glenn B Ferguson

Farrell Gillaspie

Harold P Leboeuf

Eddie McMillis, Jr

Carrol J Boyne, Jr

James L Roberts

Pradeep Tandon

Frank Harold Applegate

John D King

Terry Bergeron

Herbert Dupre, Jr

Methods and systems for maintaining a machine using an in-situ vehicle (IV) is provided. The IV may be used with a machine that includes a work-piece and an interference body positioned proximate a surface of the work-piece such that a relatively small gap extends between the work-piece and the interference body. The method includes transporting the IV from external to the machine into the gap, positioning the IV in the gap such that at least a portion of the IV circumscribes a work area of the work-piece, locking the IV between the work-piece and the interference body, and manipulating a tool coupled to the IV from external to the machine, the tool configured to transfer a component between the work-piece and a storage cassette on the IV.

Methods and systems for in-situ machine maintenance

The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed wedges of stator core slots. The frame mounts a linear drive assembly carrying a carriage for longitudinal movement relative to the drive assembly and frame. The carriage mounts diametrically opposed heads and a cylinder displaces the heads radially outwardly to engage the wedges and compress underlying ripple springs. Saws carried by the heads cut through the wedges as the carriage is displaced along the frame and without binding because of the force applied to the wedges compressing the ripple springs. The linear drive assembly is rotated to discrete circumferential positions to cut the wedges of additional diametrically opposed slots.

Apparatus for cutting and removing wedges of a stator core of an electrical machine

An Advanced Data Logging kit for testing a generator's liquid cooled stator bar system for leaks is disclosed. The kit is installed in between the generator's header and the HIT Skid and in the generator's cooling system. The kit includes pressure and vacuum transducers, sensor arrays with thermocouples, and data acquisition circuits. The sensor arrays are used to plumb the thermocouples into the generator's header and cooling pipes. The pressure and vacuum transducers and the thermocouples are used to collect pressure, vacuum and temperature data that is used to conduct a Pressure Decay Test and a Vacuum Decay Test to determine whether or not a leak in the liquid cooled stator bar system exists. A computer included in the kit has the ability to analyze the data readings, perform calculations, and predict leak rates in the stator bar system.

Advanced HIT skid data collection

A flexible bar handler that comprises a mobile carriage; a lift boom assembly rotatably attached to rotate around a vertical axis of the carriage to swing a distal end of the boom assembly back and forth and pivotally attached to pivot around a horizontal axis of the carriage to raise and lower the distal end of the boom assembly; and a lift bracket comprising an elongated rail with receptor-shaped cross section to lengthwise accommodate a bar, the lift bracket being attached at a point on its length at the distal end of the longitudinal boom assembly opposed to a counter weight attached at an opposite proximal end of the boom assembly, wherein the lift bracket is pivotally attached to a horizontal pin at the point to permit the lift bracket to tilt to one side or the other so as to raise and lower the lift bracket ends. A method of handling a stator bar; comprises loading the bar into a lift bracket comprising an elongated rail with receptor-shaped cross section, wherein the lift bracket is part of a flexible bar handler that includes a mobile carriage; manipulating the lift bracket by (i) swinging an end of the boom assembly back and forth, (ii) raising or lowering an end of the boom assembly, (iii) tilting the lift bracket to tilt the bracket to one side or the other so as to raise and lower the lift bracket ends or (iv) moving the bar forward or backward by the mobile carriage to position the bar for unloading into the stator slot; and unloading the bar into the slot.

Stator bar handler

A turbine generator with stator windings and a hydrogen pressured stator frame, includes an annular L-shaped collar affixed across a circumference of the stator frame and soldered thereto by a solder joint; a terminal plate anchored to the collar across the circumference of the stator frame and marginally separated from the collar to form a first annulus that contains a first sealant composition that interfaces with the solder bond; and a hardening sealant applied to an upper portion of the solder joint. A high voltage turbine generator is sealed by filling a first annulus formed between an annular L-shaped collar affixed across a circumference of the stator frame and soldered thereto by a solder joint and a terminal plate anchored to the collar across the circumference of the stator frame with a first sealant composition; applying a hardening sealant onto the solder joint; and coextensively covering the first sealant composition and the applied hardening sealant with a second sealant composition.

Sealed turbine generator and method

A reversible bit assembly (8) that includes a reversible bit (10) having a shank (20) and a radially enlarged center portion (22) located midway along the longitude of the shank (20). Opposed cutting tips (24) are located at opposed shank ends (23). The bit (10) is insertable into a bore (12) of a bit block (14) and held therein using a retention mechanism. A preferred retention mechanism includes a circumferential groove (34) in the bit center portion (22) and a cross hole (38) in the bit block (14) located tangent to the bore (12) at a position corresponding to the location of the groove (34) when the bit (10) is inserted in the block (14). A pin (46) inserts into the cross hole (38) to retain the bit (10) at the groove (34). An adaptor sleeve (16) is provided that may be inserted into the block (14) to additionally allow known bits (18) to be used in the block (14).

Reversible bit assembly

Growing community of inventors

Monroeville, PA, United States of America

Gary Lindsey Stewart