Patents by Inventor Christopher Michael Calebrese
Christopher Michael Calebrese has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11846665Abstract: Aspects of the present disclosure are directed to systems and methods for detecting Partial Discharge (PD) associated with wide bandgap semiconductor-based electrical drive systems in real time. In one aspect, signals, including noise associated with drive switching and other background noises are detected using a sensing device. The signals are received by a real-time spectrum analyzer. The spectrum analyzer transforms the signals into the frequency domain and determines or registers the frequency domain profiles of the signals. The spectrum analyzer performs signal discrimination between at least one other signal included within the signals and switching noise based on their frequency domain profiles. Based on the discrimination analysis, the presence of a partial discharge signal may be detected. A physics-based signal discrimination approach can also be used for signal discrimination, for example utilizing pressure-dependency of characteristics of a PD signal.Type: GrantFiled: August 26, 2021Date of Patent: December 19, 2023Assignee: General Electric CompanyInventors: Lili Zhang, Karim Younsi, Christopher Michael Calebrese, John Russell Yagielski, Han Xiong
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Publication number: 20220065915Abstract: Aspects of the present disclosure are directed to systems and methods for detecting Partial Discharge (PD) associated with wide bandgap semiconductor-based electrical drive systems in real time. In one aspect, signals, including noise associated with drive switching and other background noises are detected using a sensing device. The signals are received by a real-time spectrum analyzer. The spectrum analyzer transforms the signals into the frequency domain and determines or registers the frequency domain profiles of the signals. The spectrum analyzer performs signal discrimination between at least one other signal included within the signals and switching noise based on their frequency domain profiles. Based on the discrimination analysis, the presence of a partial discharge signal may be detected. A physics-based signal discrimination approach can also be used for signal discrimination, for example utilizing pressure-dependency of characteristics of a PD signal.Type: ApplicationFiled: August 26, 2021Publication date: March 3, 2022Inventors: Lili Zhang, Karim Younsi, Christopher Michael Calebrese, John Russell Yagielski, Han Xiong
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Patent number: 11228215Abstract: A method includes forming one or more cores, wherein each of the one or more cores has a cross section corresponding to a conductor to be subsequently formed, forming an insulator around the one or more cores, removing the one or more cores to expose one or more recesses within the insulator, and forming one or more conductors in at least one of the one or more recesses of the insulator such that the cross sections of the one or more conductors conform to an interior surface of the one or more recesses in the insulator.Type: GrantFiled: June 26, 2020Date of Patent: January 18, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Christopher Michael Calebrese, Jeffrey S. Sullivan, Qin Chen, Benjamin Hale Winkler, Kevin Warner Flanagan, Anil Raj Duggal
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Patent number: 10992201Abstract: An electrical machine of a vehicle electrical propulsion system includes a stator, a rotor, and a stator winding all disposed within a housing thereof. The stator defines a central bore elongated along a longitudinal axis, and multiple slots circumferentially disposed around the central bore. The rotor is held within the central bore and rotates relative to the stator. The stator winding includes a core conductor, an insulation layer surrounding the core conductor, and a conductive shield layer surrounding the insulation layer. The stator winding extends through the slots of the stator. The stator winding includes an in-slot portion within the slots of the stator and an end-winding portion outside of the slots. The conductive shield layer surrounds the insulation layer along both the in-slot portion and the end-winding portion of the stator winding.Type: GrantFiled: August 7, 2017Date of Patent: April 27, 2021Assignee: General Electric CompanyInventors: Christopher Michael Calebrese, Jeffrey Sullivan, Lili Zhang, Qin Chen, Konrad Weeber
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Patent number: 10848027Abstract: An electrical insulating system and an associated insulated stator bar are provided. The electrical insulating system includes an electrically insulating mica paper and a fiber glass disposed on a first surface of the electrically insulating mica paper. The electrically insulating mica paper and the fiber glass are impregnated with a curable binder resin composition. The curable binder resin composition includes about 21 weight percent to about 73 weight percent of a solid or semi-solid epoxy resin having an epoxide functionality of about 2.5, about 0.8 weight percent to about 49 weight percent of a liquid epoxy resin having an epoxide functionality of about 2, about 4 weight percent to about 15 weight percent of a bisphenol A-formaldehyde novolac, a metal acetylacetonate catalyst, and about 2.5 weight percent to about 15 weight percent of a toughener selected from the group consisting of polyethersulfone, methylmethacrylate butadiene styrene, and a combination thereof.Type: GrantFiled: November 17, 2016Date of Patent: November 24, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Christopher Michael Calebrese, Wei Zhang, Robert Colin McTigue, Stephen Francis Francese
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Publication number: 20200328642Abstract: A method includes forming one or more cores, wherein each of the one or more cores has a cross section corresponding to a conductor to be subsequently formed, forming an insulator around the one or more cores, removing the one or more cores to expose one or more recesses within the insulator, and forming one or more conductors in at least one of the one or more recesses of the insulator such that the cross sections of the one or more conductors conform to an interior surface of the one or more recesses in the insulator.Type: ApplicationFiled: June 26, 2020Publication date: October 15, 2020Applicant: GENERAL ELECTRIC COMPANYInventors: Christopher Michael Calebrese, Jeffrey S. Sullivan, Qin Chen, Benjamin Hale Winkler, Kevin Warner Flanagan, Anil Raj Duggal
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Patent number: 10700564Abstract: A method includes forming one or more cores, wherein each of the one or more cores has a cross section corresponding to a conductor to be subsequently formed, forming an insulator around the one or more cores, removing the one or more cores to expose one or more recesses within the insulator, and forming one or more conductors in at least one of the one or more recesses of the insulator such that the cross sections of the one or more conductors conform to an interior surface of the one or more recesses in the insulator.Type: GrantFiled: April 17, 2017Date of Patent: June 30, 2020Assignee: GENERAL ELECTRIC COMPANYInventors: Christopher Michael Calebrese, Jeffrey S. Sullivan, Qin Chen, Benjamin Hale Winkler, Kevin Warner Flanagan, Anil Raj Duggal
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Publication number: 20200127519Abstract: A method for forming an article is presented. The method includes providing one or more ceramic insulators having one or more recesses, providing a plurality of conductors within the one or more recesses of the one or more ceramic insulators, and joining a first conductor of the plurality of conductors to a second conductor of the plurality of conductors.Type: ApplicationFiled: October 23, 2018Publication date: April 23, 2020Inventors: Jie Jerry Liu, Anil Raj Duggal, Christopher Michael Calebrese, Weijun Yin, Wei Zhang, Jongwoo Choi
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Patent number: 10333374Abstract: Insulation systems that present an electrical stress grading through the disposition of resistively graded networks between insulating layers is described. The resistively graded networks may be implemented by coating insulating material with resistive material, and wrapping the insulation material around a conductor. The resistive material may be linear or non-linear material. Fabrication of the insulating material, the resistive material, and the coating process are also discussed, as well as the application of the insulation to the conductor are also discussed.Type: GrantFiled: May 8, 2017Date of Patent: June 25, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Jeffrey Stuart Sullivan, Christopher Michael Calebrese, Qin Chen, Alexander Rene Anderton, Massimiliano Vezzoli
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Publication number: 20190044405Abstract: An electrical machine of a vehicle electrical propulsion system includes a stator, a rotor, and a stator winding all disposed within a housing thereof. The stator defines a central bore elongated along a longitudinal axis, and multiple slots circumferentially disposed around the central bore. The rotor is held within the central bore and rotates relative to the stator. The stator winding includes a core conductor, an insulation layer surrounding the core conductor, and a conductive shield layer surrounding the insulation layer. The stator winding extends through the slots of the stator. The stator winding includes an in-slot portion within the slots of the stator and an end-winding portion outside of the slots. The conductive shield layer surrounds the insulation layer along both the in-slot portion and the end-winding portion of the stator winding.Type: ApplicationFiled: August 7, 2017Publication date: February 7, 2019Inventors: Christopher Michael Calebrese, Jeffrey Sullivan, Lili Zhang, Qin Chen, Konrad Weeber
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Publication number: 20180323688Abstract: Insulation systems that present an electrical stress grading through the disposition of resistively graded networks between insulating layers is described. The resistively graded networks may be implemented by coating insulating material with resistive material, and wrapping the insulation material around a conductor. The resistive material may be linear or non-linear material. Fabrication of the insulating material, the resistive material, and the coating process are also discussed, as well as the application of the insulation to the conductor are also discussed.Type: ApplicationFiled: May 8, 2017Publication date: November 8, 2018Inventors: Jeffrey Stuart Sullivan, Christopher Michael Calebrese, Qin Chen, Alexander Rene Anderton, Massimiliano Vezzoli
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Publication number: 20180301244Abstract: A method includes forming one or more cores, wherein each of the one or more cores has a cross section corresponding to a conductor to be subsequently formed, forming an insulator around the one or more cores, removing the one or more cores to expose one or more recesses within the insulator, and forming one or more conductors in at least one of the one or more recesses of the insulator such that the cross sections of the one or more conductors conform to an interior surface of the one or more recesses in the insulator.Type: ApplicationFiled: April 17, 2017Publication date: October 18, 2018Inventors: Christopher Michael Calebrese, Jeffrey S. Sullivan, Qin Chen, Benjamin Hale Winkler, Kevin Warner Flanagan, Anil Raj Duggal
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Publication number: 20180138772Abstract: An electrical insulating system and an associated insulated stator bar are provided. The electrical insulating system includes an electrically insulating mica paper and a fiber glass disposed on a first surface of the electrically insulating mica paper. The electrically insulating mica paper and the fiber glass are impregnated with a curable binder resin composition. The curable binder resin composition includes about 21 weight percent to about 73 weight percent of a solid or semi-solid epoxy resin having an epoxide functionality of about 2.5, about 0.8 weight percent to about 49 weight percent of a liquid epoxy resin having an epoxide functionality of about 2, about 4 weight percent to about 15 weight percent of a bisphenol A-formaldehyde novolac, a metal acetylacetonate catalyst, and about 2.5 weight percent to about 15 weight percent of a toughener selected from the group consisting of polyethersulfone, methylmethacrylate butadiene styrene, and a combination thereof.Type: ApplicationFiled: November 17, 2016Publication date: May 17, 2018Inventors: Christopher Michael Calebrese, Wei Zhang, Robert Colin McTigue, Stephen Francis Francese
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Publication number: 20160104555Abstract: A method for improving the electric field distribution in a high voltage direct current cable includes providing a cable that includes a conductor, a protective jacket, a shield layer disposed inside the jacket, and an insulation layer disposed inside the shield layer, surrounding the conductor. The insulation layer includes ethylene-propylene rubber, talc, and montmorillonite.Type: ApplicationFiled: October 10, 2014Publication date: April 14, 2016Applicant: GENERAL ELECTRIC COMPANYInventors: Qin CHEN, Christopher Michael CALEBRESE, Yang CAO, Sheng ZHONG
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Publication number: 20150155070Abstract: Embodiments of an insulation for electrical components are provided herein. In one embodiment an insulation for an electrical component may include a filler dispersed throughout a polymer matrix, the filler comprising a talc containing nanoclay and boron nitride. In one embodiment, an insulating tape for an electrical component may include a substrate and an insulation disposed atop the substrate, the insulation comprising a filler dispersed throughout a polymer matrix, the filler comprising a talc containing nanoclay and boron nitride. In one embodiment, a stator bar may include a conductive core and an insulating tape disposed atop one or more surfaces of the conductive core, the insulating tape comprising a substrate and an insulation disposed atop the substrate, the insulation comprising a filler dispersed throughout a polymer matrix, the filler comprising a talc containing nanoclay and boron nitride.Type: ApplicationFiled: December 4, 2013Publication date: June 4, 2015Applicant: GENERAL ELECTRIC COMPANYInventors: Yang Cao, Christopher Michael Calebrese, Stephen Francis Francese, Xiaomei Fang, Christopher Anthony Kaminski, Yosang Yoon, Wei Zhang