Resistively graded insulation for stators

Sullivan, Jeffrey Stuart; Calebrese, Christopher Michael; Chen, Qin; Anderton, Alexander Rene; Vezzoli, Massimiliano

Title: Resistively graded insulation for stators

Abstract

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.

Inventors:: Sullivan, Jeffrey Stuart; Calebrese, Christopher Michael; Chen, Qin; Anderton, Alexander Rene; Vezzoli, Massimiliano

Issue Date:: 2019-06-25

Research Org.:: General Electric Co., Schenectady, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1568500

Patent Number(s):: 10333374

Application Number:: 15/589,422

Assignee:: General Electric Company (Schenectady, NY)

Patent Classifications (CPCs):: H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES

Show more

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K3/30 - Windings characterised by the insulating material
H02K2213/03 - Machines characterised by numerical values, ranges, mathematical expressions or similar information
H02K15/105 - {to the windings}
H02K3/345 - {between conductor and core, e.g. slot insulation}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01B - CABLES
H01B19/04 - Treating the surfaces, e.g. applying coatings

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E10/72 - Wind turbines with rotation axis in wind direction

H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
H02K3/40 - for high voltage, e.g. affording protection against corona discharges

H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
H02P27/08 - with pulse width modulation

Show less

DOE Contract Number:: EE0007873

Resource Type:: Patent

Resource Relation:: Patent File Date: 05/08/2017

Country of Publication:: United States

Language:: English

Citation Formats


                    Sullivan, Jeffrey Stuart, Calebrese, Christopher Michael, Chen, Qin, Anderton, Alexander Rene, and Vezzoli, Massimiliano. Resistively graded insulation for stators.  United States: N. p., 2019. 
        Web.

Copy to clipboard


                    Sullivan, Jeffrey Stuart, Calebrese, Christopher Michael, Chen, Qin, Anderton, Alexander Rene, & Vezzoli, Massimiliano. Resistively graded insulation for stators.  United States.

Copy to clipboard


                    Sullivan, Jeffrey Stuart, Calebrese, Christopher Michael, Chen, Qin, Anderton, Alexander Rene, and Vezzoli, Massimiliano. Tue .  
        "Resistively graded insulation for stators".  United States.  https://www.osti.gov/servlets/purl/1568500.

Copy to clipboard


                    
@article{osti_1568500,

  title        = {Resistively graded insulation for stators},

  author       = {Sullivan, Jeffrey Stuart and Calebrese, Christopher Michael and Chen, Qin and Anderton, Alexander Rene and Vezzoli, Massimiliano},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {6}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Insulation system for a stator bar with low partial discharge
patent, June 2015

Rao, Dantam K.
US Patent Document 9,059,616
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=9059616

Partial-discharge-resistant insulating varnish, insulated wire and method of making the same
patent, October 2014

Kikuchi, Hideyuki; Yukimori, Yuzo
US Patent Document 8,871,343
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8871343

System for monitoring the insulation quality of step graded insulated high voltage apparatus
patent, November 1995

Meyer, II, Thomas J.
US Patent Document 5,471,144
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5471144

Sensorless control system and method of permanent magnet synchronous motor
patent, May 1999

Sakakibara, Hiroyuki; Okuno, Tomoya; Obayashi, Kazuyoshi
US Patent Document 5,903,128
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=5903128

Method for producing a high-quality insulation of electric conductors or conductor bundles of rotating electrical machines by means of spray sintering
patent, May 2006

Baumann, Thomas; Nienburg, Johann Christoph; Sopka, Jrg
US Patent Document 7,052,569
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=7052569

Electronic device and method
patent, June 2012

Tan, Daniel Qi; Irwin, Patricia Chapman; Younsi, Abdelkrim
US Patent Document 8,207,813
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8207813

System and method for determining stator winding resistance in an AC motor using motor drives
patent, February 2013

Lu, Bin; Habetler, Thomas G.; Zhang, Pinjia
US Patent Document 8,384,338
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8384338

Apparatus and method for rotating-sensorless identification of mechanical parameters of a three-phase asynchronous motor
patent, December 2013

Villwock, Sebastian; Zatocil, Heiko
US Patent Document 8,604,745
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8604745

Insulation for electrical conductors that produces no partial discharges
patent, August 2005

Brandes, Heinz; Hillmer, Thomas; Rediger, Jean-Luc
US Patent Document 6,927,342
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=6927342

Apparatus and method for detecting partial discharge at turn-to-turn insulation in motor
patent, August 2014

Obata, Kouji; Fukushi, Keiji; Obata, Takeshi
US Patent Document 8,816,694
URL: http://patft.uspto.gov/netacgi/nph-Parser?patentnumber=8816694

Similar Records in DOE Patents and OSTI.GOV collections:

System and method for determining stator winding resistance in an AC motor

Patent Lu, Bin [Kenosha, WI]; Habetler, Thomas G [Snellville, GA]; Zhang, Pinjia [Atlanta, GA]; ...

A system and method for determining stator winding resistance in an AC motor is disclosed. The system includes a circuit having an input connectable to an AC source and an output connectable to an input terminal of an AC motor. The circuit includes at least one contactor and at least one switch to control current flow and terminal voltages in the AC motor. The system also includes a controller connected to the circuit and configured to modify a switching time of the at least one switch to create a DC component in an output of the system corresponding to anmore »« less
Full Text Available
System and method for determining stator winding resistance in an AC motor using motor drives

Patent Lu, Bin; Habetler, Thomas G; Zhang, Pinjia

A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor,more »« less
Full Text Available
Resistive foil edge grading for accelerator and other high voltage structures

Patent Caporaso, George J.; Sampayan, Stephen F.; Sanders, David M.

In a structure or device having a pair of electrical conductors separated by an insulator across which a voltage is placed, resistive layers are formed around the conductors to force the electric potential within the insulator to distribute more uniformly so as to decrease or eliminate electric field enhancement at the conductor edges. This is done by utilizing the properties of resistive layers to allow the voltage on the electrode to diffuse outwards, reducing the field stress at the conductor edge. Preferably, the resistive layer has a tapered resistivity, with a lower resistivity adjacent to the conductor and a highermore »« less
Full Text Available
Fibers and fabrics with insulating, water-proofing, and flame-resistant properties

Patent Hrubesh, Lawrence W.; Poco, John F.; Coronado, Paul R.

Fibers, and fabrics produced from the fibers, are made water repellent, fire-retardant and/or thermally insulating by filling void spaces in the fibers and/or fabrics with a powdered material. When the powder is sufficiently finely divided, it clings tenaciously to the fabric's fibers and to itself, resisting the tendency to be removed from the fabric.
Full Text Available
Automatic insulation resistance testing apparatus

Patent Wyant, Francis J.; Nowlen, Steven P.; Luker, Spencer M.

An apparatus and method for automatic measurement of insulation resistances of a multi-conductor cable. In one embodiment of the invention, the apparatus comprises a power supply source, an input measuring means, an output measuring means, a plurality of input relay controlled contacts, a plurality of output relay controlled contacts, a relay controller and a computer. In another embodiment of the invention the apparatus comprises a power supply source, an input measuring means, an output measuring means, an input switching unit, an output switching unit and a control unit/data logger. Embodiments of the apparatus of the invention may also incorporate cablemore »« less
Full Text Available

Similar Records

Title: Resistively graded insulation for stators

Abstract

Citation Formats

Insulation system for a stator bar with low partial discharge patent, June 2015

Partial-discharge-resistant insulating varnish, insulated wire and method of making the same patent, October 2014

System for monitoring the insulation quality of step graded insulated high voltage apparatus patent, November 1995

Sensorless control system and method of permanent magnet synchronous motor patent, May 1999

Method for producing a high-quality insulation of electric conductors or conductor bundles of rotating electrical machines by means of spray sintering patent, May 2006

Electronic device and method patent, June 2012

System and method for determining stator winding resistance in an AC motor using motor drives patent, February 2013

Apparatus and method for rotating-sensorless identification of mechanical parameters of a three-phase asynchronous motor patent, December 2013

Insulation for electrical conductors that produces no partial discharges patent, August 2005

Apparatus and method for detecting partial discharge at turn-to-turn insulation in motor patent, August 2014

Insulation system for a stator bar with low partial discharge
patent, June 2015

Partial-discharge-resistant insulating varnish, insulated wire and method of making the same
patent, October 2014

System for monitoring the insulation quality of step graded insulated high voltage apparatus
patent, November 1995

Sensorless control system and method of permanent magnet synchronous motor
patent, May 1999

Method for producing a high-quality insulation of electric conductors or conductor bundles of rotating electrical machines by means of spray sintering
patent, May 2006

Electronic device and method
patent, June 2012

System and method for determining stator winding resistance in an AC motor using motor drives
patent, February 2013

Apparatus and method for rotating-sensorless identification of mechanical parameters of a three-phase asynchronous motor
patent, December 2013

Insulation for electrical conductors that produces no partial discharges
patent, August 2005

Apparatus and method for detecting partial discharge at turn-to-turn insulation in motor
patent, August 2014