General Electric Company

James Daniel Antalek

Anthony James George

Jeffrey James Andritz

Steven Paul Scarlata

Fotios Raftelis

John Paul Davis

Kevin Jon O'Dell

Daniel James Fitzmorris

Abby Marie Magro

Sudhanshu Rai

Hans M Knuijt

Nicola Piccirillo

James Thomas Clark

Vinodh Kumar Bandaru

Krishna Swamy Cherukuri

Win Nguyen

Hua Xia

Renato Guida

John Russell Yagielski

Balamurugan Sridharan

Rebinth Jose Robin

Matthew Robert Martin

Steven Craig Kluge

Michael James Molitor

Jeffrey Michael Daniels

Timothy Andrew Melsert

Dennis Anthony Pasquarella

William Eric Maki

Michael James Palleschi

Aniceto Domingo Bantug, Iv

Kevin J Odell

Christoph Spitzenpfeil

Chad Robert Conrad

A hydrogen cooled generator having a system for diagnosing problems associated with a seal oil system. Included is a shaft having a turbine end and a collector end; a first shaft seal located about the shaft at the turbine end; a second shaft seal located about the shaft at the collector end; a first set of sensors for measuring seal oil pressure differentials across both shaft seals; a second set of sensors for measuring seal oil temperature differentials across both shaft seals; a third sensor for measuring a hydrogen side seal oil flow rate; and a system for analyzing data collected from at least two sensors to diagnose the shaft seals.

Turbine-generator hydrogen seal oil system diagnosis

A system includes an electrical generator comprising a stator, a rotor, and a gas coolant path through an interior of the electrical generator and at least one fiber optic purity sensor configured to sense a gas purity of a flow of a gas coolant through the gas coolant path.

System having fiber optic purity sensor

According to one aspect of the invention, a system for controlling a temperature of a generator is provided, wherein the system includes a fluid supply in fluid communication with the generator and a heat exchange apparatus in fluid communication with the fluid supply, the generator and a cooling fluid source. The system also includes a first sensor configured to determine a first temperature of a fluid flowing from the heat exchange apparatus to the generator, a second sensor configured to determine a second temperature of the fluid flowing from the generator to the fluid supply and a controller configured to determine an operating limit temperature for the fluid based on the determined first and second temperatures.

System and method for controlling a temperature of a generator

A steam seal dump re-entry system delivers steam dump flow to an LP steam turbine. The system includes a steam seal header receiving steam leaking from turbine end seal packings, and a desuperheater receiving and cooling the steam from the steam seal header. The desuperheater outputs cooled steam. A temperature sensor is disposed downstream of the desuperheater and detects a temperature of the cooled steam. A flow control circuit communicating with the temperature sensor selectively delivers the cooled steam to at least one of the condenser and to the LP steam turbine depending on the temperature of the cooled steam.

Steam seal dump re-entry system

In an embodiment, a system includes: a casing for surrounding at least a portion of a rotor, and enclosing a volume of a cooling gas thereabout, the casing including a plurality of static seals; an end housing at each end of the casing, each end housing including a seal system through which the rotor extends, wherein a portion of cooling gas escapes from the casing to at least one seal area; and a source of cooling gas fluidly coupled to the casing by a cooling gas regulator. The system may further include: a scavenging system coupled to each end housing for removing a gas mixture therefrom including a portion of escaping cooling gas; a sensor for determining a purity of the cooling gas in the casing; and a static seal leak detector that generates an alarm indicative of a leak in at least one of the plurality of static seals.

Seal leakage and seal oil contamination detection in generator

Methods are provided for repairing a frame configured to support a wind turbine generator. The method includes providing a frame support including a stand, tension member, and jack. The frame support includes a stand coupled to a first portion of the frame. The tension member is coupled to the stand and a second portion of the frame. The jack is configured to move the stand. The jack is actuated to move the stand and increase a tension in the tension member to move the second portion with respect to the first portion. The frame is repaired while the frame support is coupled to the frame. The jack is actuated to move the stand and decrease the tension in the tension member to move the second portion with respect to the first portion. The tension member is decoupled from the second portion. The stand is decoupled form the first portion.

Method for repairing a generator frame

A carbon dioxide (CO2) purity sensor package includes a fiber core, a periodic refractive index modulated fiber grating structure within the fiber core and a fiber cladding. A thermally conductive sensing layer is positioned about a portion of the fiber cladding surrounding the periodic refractive index modulated fiber grating structure. A gas chamber encloses the fiber cladding with the thermally conductive sensing layer.

Fiber optic carbon dioxide purity sensor package and system

A filter system is provided for a hydrogen cooled dynamoelectric machine, and includes a float trap fluidly connected to a component of the dynamoelectric machine via a first conduit, a filter fluidly connected to the float trap via a second conduit, and a flow switch fluidly connected to the filter via a third conduit. The third conduit is fluidly connected to a hydrogen control assembly.

Scavenging filter system for hydrogen-cooled dynamoelectric machines

Detection of, among other things, seal leakage(s) and/or seal oil contamination for a gas cooled generator are provided. Detectors according to some embodiments of the invention provide mechanisms of early detection of cooling gas, e.g., hydrogen, leakage through leakage sources as well as low purity and high cooling gas consumption problems in a gas cooled generator.

Systems for controlling hydrogen purity in a power plant system are disclosed. In one embodiment, a hydrogen control system for a generator housing includes: a mass flow control system fluidly connected to the generator housing, the mass flow control system being configured to measure a flow rate of a gas mixture extracted from the generator housing and modify the flow rate of the gas mixture across a range of flow rates; and a vent conduit fluidly connected to the mass flow control system, the vent conduit for receiving a portion of the gas mixture from the mass flow control system and feeding the portion of the gas mixture to an outlet.

Hydrogen control system for electric generator

A support for a wind turbine having rear frame extending from a bedplate, where the support includes at least one tension member extending between the rear frame and the bedplate.

Frame support for wind turbine

A modular life extension kit is configured to extend a useful life of a support frame for a wind turbine generator. The support frame includes a support member coupled to a support cross-member. The support member has a first length, and the support cross-member has a second length. The modular life extension kit includes a plurality of plates configured to be coupled to the support frame. At least a first plate of the plurality of plates has a first side configured to be coupled to the support member and a second side configured to be coupled to the support cross-member. The first side extends at least five percent of the first length and the second side extends at least five percent of the second length.

Modular life extension kit for a wind turbine generator support frame

A hydrogen cooled generator includes a lubricant drain system. The lubricant drain system includes a hydrogen detraining tank having a hollow interior portion. A sensor is operatively mounted in the hydrogen detraining tank. The sensor is configured and disposed to detect an interface zone between an amount of lubricant and an amount of hydrogen gas in the hollow interior portion. A drain line is fluidly coupled to the hydrogen detraining tank. The drain line includes a first end portion that is exposed in the hollow interior portion and a second end portion. A valve is mounted in the drain line. A controller is operatively connected to the sensor and the valve. The controller is configured to selectively open the valve allowing a portion of the amount of lubricant to flow from the hollow interior portion when the interface zone is above the first end portion of the drain line.

Growing community of inventors

Valatie, NY, United States of America

James Daniel Antalek