Siemens Energy, Inc.

Westinghouse Electric Corporation

Siemens Westinghouse Power Corporation

Eaton Corporation

Siemens Power Generation, Inc.

James Alan Bauer

George F Dailey

Mark William Fischer

Charles Crawford Moore

Michael J Metala

Henry Anthony Wehrli, Iii

Denis A Mueller

Tom Majernik

Barry Sargeant

Michael R Vindler

El Mahjoub Rasselkorde

Michael F Fair

Michael Charles Moore

Harry L Sill

Richard A Elco

Willard E Treese

Joseph C Engel

James D Smith

John Joseph Shea

John Barry Sargeant

David Thomas Allen

Waheed A Abbasi

Michael A Hall

Robert T Basnett

Kathryn M Palmer

Edward J Hyp

Nelson R Palmer

Alex Christodoulou

Scott A Karstetter

Thomas M Majernik

Timothy J Garner

Jae Young Choi

Thomas A Wilsdon

John E Noll

Xabier A Sanjuan

James Alford

Christopher Lee Harms

John R Wilson

Lukas Demsey

Waldemar Spruda

Olaf Froede

Joseph T Beuten

Dwight Owen Willaman

Francisco J Jaimes

Thomas L Schuchart

Charles Moore

David Bruce Berrong

James Alan Cook

A tool system for tightening a retrightenable wedge system in a slot of a generator stator core is presented. The tool system includes a carriage assembly and a wedge tool assembly that is pivotally coupled to the carriage assembly. The carriage assembly includes motorized drives that axially moves the tool system along the slot and holds the tool system on the slot at an axial position. The wedge tool assembly includes a torqueing socket to tighten the retightenable wedge assembly in the slot. The torqueing socket is driven by a worm gear arrangement.

Tool system for tightening retightenable wedge system in slot of generator stator core

Eddy current inspection of the step iron region of a generator stator core lamina insulation is performed while the rotor is in situ, with inspection system (). The system () excites the stator core () and then measures any eddy currents indicative of a damaged region. The inspection system carriage () and its pivoting extension arm () are inserted within the rotor gap () while the rotor () remains in situ within the generator (). The EL CID system's eddy current sensing coil assembly () includes a Chattock coil (), which is mounted in a coil housing () that is in turn pivotally mounted on a distal end of the extension arm (). A sensing surface () of the coil housing () remains in abutting contact with the generator core circumference in the step iron region (), despite the step-like profile of the core circumference in that region.

System and method for inspection of a generator stator core step iron region with the rotor in-situ

System, methods, and devices for inspecting generator rotor slot wedges in-situ are provided. The system includes a controller operably connected to a remote-control carriage for transmitting control signals and receiving data. The carriage includes a drive module for moving the carriage into an inspection area, e.g., through an air gap between the rotor and stator, and an inspection module operable to inspect a rotor wedge surface. The inspection module includes a jack assembly and a transducer assembly. The jack assembly is operably connected to the transducer assembly, and configured to elevate the transducer assembly to the rotor wedge surface for inspection.

Systems and apparatus for inspection of electric generator rotor slot wedges in-situ and methods of using the same

Immersion ultrasonic NDE is performed within cavities of inanimate objects, having downwardly directed openings, such as for in situ inspection of steam inlet sleeves and steam inlet necks within steam turbine housings. A shaft assembly has one or more single angle or phased array ultrasonic probes that are affixed on an upstream or distal end. An inflatable bladder is affixed to the shaft on a proximal end of the shaft assembly downstream the ultrasonic probe(s). The shaft is inserted into the cavity opening, and the bladder is inflated to form a fluid tight seal against the cavity. Immersion fluid is introduced upstream the bladder in the volume occupied by the probes. Immersion ultrasonic inspection of the object is then performed.

Method and system for immersion ultrasound inspection including within downwardly opening cavities

A device for removing a coating formed in a slot of a stator core. The device includes a carriage movably attached to a first guide rail assembly to enable movement of the carriage in a longitudinal direction. The device also includes a first drive screw wherein rotation of the first drive screw moves the first guide rail assembly in the longitudinal direction. In addition, the device includes a second guide rail assembly that is attached to the carriage wherein the second guide rail assembly enables movement of the carriage in a direction transverse to the longitudinal direction. Further, the device includes a second drive screw wherein rotation of the second drive screw moves the carriage in the transverse direction. The carriage includes a laser beam emitting head that moves within the slot in either or both the longitudinal or transverse directions wherein the laser beam emitting head emits a laser beam to remove the coating.

Laser cleaning system for a stator slot

Steam turbine engine cross over pipe or other pipe internal inspection is performed with a selectively steerable pipe inspection crawler apparatus with a chassis having a longitudinal axis, with front and rear Mechanum wheels capable of independently-selected forward or rearward driven rotational direction, for selectively steering the apparatus within the pipe interior under control of a human-machine interface (HMI). The crawler apparatus has at least one inspection camera having a field of view, for capturing images of a pipe interior that is also under control of the HMI. Embodiments of the crawler apparatus include a selectively orientable inspection camera and/or a deployable bore scope that is selectively deployed and retracted from a descending section of the cross over pipe.

Pipe crawler apparatus and method for internal pipe inspection

The present invention provides an apparatus for the horizontal stacking of laminationsand donuts to form a stator core. A stator generator framehas multiple keybarsthat run the axial length of the frame. The laminationshave groovesthere-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybars, these extensionsmay be used as rails on which the laminations may be horizontally inserted into the stator frame.

Horizontal assembly of stator core using keybar extensions

An inspection head where non-destructive inspection is structured to fit into narrow spaces, and to accurately and repeatably move an inspection probe along a surface to be inspected. Movement of the inspection head along an X, Y, Z, &#x398;, and &#x3a6;-axis is precisely controlled by individual drive mechanisms.

Nondestructive inspection heads for components having limited surrounding space

An inspection system () is for inspecting power generation equipment () and includes a remote receiving device () which receives images captured and transmitted by an inspection apparatus (). A recording device () records the images thereby providing a permanent record of the inspection. The inspection apparatus () comprises: a flashlight assembly () including a power supply (), an elongated housing () having first and second ends (), a lens body () coupled to the first end (), and a lens cover () covering the lens body (). The inspection apparatus () further includes an imaging system () having a camera (), such as a wireless video camera, which is disposed within the lens body opening (), an illumination assembly () which generally surrounds the camera (), and a protective cover () for the illumination assembly (). An associated method is also disclosed.

Illuminated inspection apparatus and method of employing the same

A remote-controlled dynamoelectric machine maintenance vehicle that can fit and travel within the air gap between a stator and rotor of a dynamoelectric machine. The maintenance vehicle has an effectuator that can remotely attach to an adjustable wedge within a coil slot of the stator and tighten the wedge in position and then move on to repeat the process until all the wedges on the stator are secured.

Automated remote carriage for tightening generator wedges

The present invention provides an apparatus for the horizontal stacking of laminationsand donuts to form a stator core. A stator generator framehas multiple keybarsthat run the axial length of the frame. The laminationshave groovesthere-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybarsthese extensionsmay be used as rails on which the laminations may be horizontally inserted into the stator frame.

The present invention provides a method for the horizontal stacking of laminationsand donuts to form a stator core. A stator generator framehas multiple keybarsthat run the axial length of the frame. The laminationshave groovesthere-in that engage the keybars to provide a secure fit of the laminations to the generator frame. By extending two or more of the keybars, these extensionsmay be used as rails on which the laminations may be horizontally inserted into the stator frame.

Method of horizontally stacking a stator core within a stator frame

The present invention provides for a method and apparatus of horizontally stacking a stator core. A central rail structurethat runs down approximately the center axis of the stator frame, and attached to the central rail structure are adjustable supportsthat hold the central rail structure within the stator frame. A dollyis positioned on top of the central rail structure. The dollyhas multiple finger supportsdisposed on its top and the finger supports match corresponding grooves in stator core laminations. Lamination are placed onto the dolly, gaps in the lamination engage the finger supports on the upper inner diameter of the lamination. This allows for the lamination to be horizontally moved into place within the stator frame.

Horizontal assembly of stator core using a central rail structure

A remote controlled inspection vehicle provides interchangeable modules, permitting the vehicle to be easily configured to perform a wide variety of tasks. The vehicle includes at least one frame module having a pair of drive modules on either side. Each drive module includes a continuous track surrounding a permanent magnet, and is dimensioned and configured to pivot around its longitudinal axis. The frame modules are dimensioned and configured to be hingedly secured to other frame modules, end effectors including various sensors for performing inspections, and tail units to assist in placing the vehicle in the desired environment.

Remote controlled inspection vehicle utilizing magnetic adhesion to traverse nonhorizontal, nonflat, ferromagnetic surfaces

Growing community of inventors

Gibsonia, PA, United States of America

James Alan Bauer