General Electric Company

Clive W Reed

Stefan J Rzad

John C Devins

Gerald Burt Kliman

Patricia Chapman Irwin

Michael G Minnick

John Raymond Krahn

Robert J Wojnarowski

Thomas Bert Gorczyca

Tohru Takekoshi

Kenneth Gordon Herd

Charles S Korman

Guanzhong Gao

Douglas J Conley

John T Bendler

A monitoring system includes at least one partial discharge (PD) sensor. The PD sensor is configured to monitor a component of an aircraft wiring system and to acquire a monitoring signal. A method embodiment for monitoring an aircraft wiring system includes acquiring a number of monitoring signals for a number of components of the aircraft wiring system using a number of partial discharge PD sensors. The method further includes conveying the monitoring signals from at least one of the PD sensors to a data acquisition system.

Monitoring system and method for wiring systems

A thixotropic dielectric fluid that includes vegetable oil, transformer oil, and a clay material. The thixotropic dielectric fluid is particularly suited for use in a capacitor.

Thixotropic dielectric fluid for capacitors

A method for coupling electrically conductive bushings in a bus, including alternating layers of dielectric material and patterned, electrically conductive bus bars and having through holes therein with each through hole having a surface exposing a portion of a respective one of the bus bars, includes: applying a polymer mixture to the surface of each through hole; inserting the bushings in the respective through holes; and curing the polymer mixture by positioning the bus and bushings in a curing chamber, applying a vacuum to the curing chamber, and applying pressure to reduce voids in the polymer mixture and minimize further void formation.

High voltage polymer processing methods and power feed-through bushing applications

An improved process for determining the presence of water in a material is disclosed. A set of electrodes is placed on the surface of a layer of the material being monitored, and an electric field is established therebetween. The phase angle for the electric field at a pre-selected frequency is measured, and compared with a predetermined phase angle for a dry portion of the material. A significant difference between the phase angle for the material being monitored and the predetermined phase angle is indicative of the presence of water in the material. The material being monitored may be an electrical insulating material, e.g., for conductive components in water-cooled electrical generators. Electrical generators monitored in this manner are also within the scope of this disclosure.

Method for determining the presence of water in materials

A partial discharge (PD) coupler includes at least one high voltage capacitor; potting material surrounding the capacitor; and a fuse physically and electrically connected in series to the capacitor. The capacitor and the fuse are capable of passing high frequency partial discharge with minimal attenuation. The PD coupler can have potting material surrounding both the capacitor and the fuse. The PD coupler can include a housing surrounding the capacitor, the potting material, and the fuse.

Partial discharge coupler

A method for fabricating a motor component comprises forming a plurality of substantially parallel electrical current conductors and molding magnetic flux conductive material around at least a portion of each of the plurality of electrical current conductors. In one embodiment the motor component comprises a stator, and the step of forming a plurality of slot liners comprises positioning multi-turn wire coils on a mandrel. In another embodiment, the motor component comprises a rotor, and the step of forming the plurality of substantially parallel electrical current conductors comprises fabricating a rotor cage.

Fabrication of induction motors

Film forming aromatic organic polymers are provided having a dielectric constant greater than 3 resulting from the polymerization of aromatic organic monomers having orientable organic dipolar groups with a net dipole moment of at least 0.5 Debye. Among the aromatic organic polymers are included polyimides and polyetherimides having repeat main chain groups with orientable organic dipolar groups with non-symmetrically positioned polar radicals, such as fluoro and nitrile.

Film forming aromatic organic polymers having enhanced dielectric

A method of preparing transparent plastic articles having an improved protective stratum thereon. The protective stratum provides protection from UV light and abrasion. The article includes a polycarbonate substrate and multi-layered coating applied by plasma enhanced chemical vapor deposition on surface of the substrate.

Method of preparing UV absorbant and abrasion-resistant transparent

An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.

Abrasion-resistant plastic articles

Abrasion-resistant plastic articles and method for making them

An abrasion-resistant article and method for making is disclosed. The article includes a polycarbonate substrate, an interfacial layer of an adherent resinous composition on the substrate, and an abrasion-resistant top layer applied on the interfacial layer by plasma-enhanced chemical vapor deposition.

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Scotia, NY, United States of America

Clive W Reed