AU2001287457A1 - Graded electric field insulation system for dynamoelectric machine - Google Patents

Graded electric field insulation system for dynamoelectric machine

Info

Publication number
AU2001287457A1
AU2001287457A1 AU2001287457A AU8745701A AU2001287457A1 AU 2001287457 A1 AU2001287457 A1 AU 2001287457A1 AU 2001287457 A AU2001287457 A AU 2001287457A AU 8745701 A AU8745701 A AU 8745701A AU 2001287457 A1 AU2001287457 A1 AU 2001287457A1
Authority
AU
Australia
Prior art keywords
insulation
electric field
groundwall
layer
field profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001287457A
Inventor
Robert Draper
David A. Snopek
Konrad Weeber
A. Karim Younsi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Canada Co
Original Assignee
General Electric Canada Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA 2319281 external-priority patent/CA2319281A1/en
Application filed by General Electric Canada Co filed Critical General Electric Canada Co
Publication of AU2001287457A1 publication Critical patent/AU2001287457A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/40—Windings characterised by the shape, form or construction of the insulation for high voltage, e.g. affording protection against corona discharges
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation

Abstract

There is disclosed a groundwall insulation system for use in dynamoelectric machines carrying voltages above 4 kV and preferably in the order of 13.8 kV, or higher. The groundwall insulation comprises two layers of insulation wound onto the conductors of the high voltage winding. The first layer of insulation has a first permittivity that is greater then the permittivity of the second layer of insulation wound onto the first layer of insulation. As a consequence, at the juncture between the first and second layers there is a sharp increase in the electric field profile as seen through the groundwall insulation. This step increase in the electric field profile results in the electric field adjacent the conductor having a maximum magnitude that is less than that normally experienced by insulation systems in the past. By reducing the maximum magnitude of the local electric field profile within the groundwall insulation the life of the insulation and hence the electrical conductor is improved while at the same time permitting a reduction in the thickness of the groundwall insulation.
AU2001287457A 2000-09-14 2001-09-06 Graded electric field insulation system for dynamoelectric machine Abandoned AU2001287457A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CA2319281 2000-09-14
CA 2319281 CA2319281A1 (en) 2000-09-14 2000-09-14 Graded electric field insulation system for dynamoelectric machine
CA2344564 2001-05-03
CA002344564A CA2344564C (en) 2000-09-14 2001-05-03 Graded electric field insulation system for dynamoelectric machine
PCT/CA2001/001254 WO2002023696A1 (en) 2000-09-14 2001-09-06 Graded electric field insulation system for dynamoelectric machine

Publications (1)

Publication Number Publication Date
AU2001287457A1 true AU2001287457A1 (en) 2002-03-26

Family

ID=25682075

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001287457A Abandoned AU2001287457A1 (en) 2000-09-14 2001-09-06 Graded electric field insulation system for dynamoelectric machine

Country Status (14)

Country Link
US (1) US6750400B2 (en)
EP (1) EP1319266B1 (en)
JP (1) JP3721359B2 (en)
KR (1) KR100532255B1 (en)
CN (1) CN1230963C (en)
AT (1) ATE284086T1 (en)
AU (1) AU2001287457A1 (en)
BR (1) BR0113868A (en)
CA (1) CA2344564C (en)
DE (1) DE60107587T2 (en)
ES (1) ES2232659T3 (en)
MX (1) MXPA03002268A (en)
NZ (1) NZ522910A (en)
WO (1) WO2002023696A1 (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7250704B1 (en) 2003-08-06 2007-07-31 Synchrony, Inc. High temperature electrical coil
DE10345664B4 (en) * 2003-09-25 2008-11-13 Siemens Ag Head for liquid-cooled windings
BRPI0613303A8 (en) 2005-05-23 2018-01-30 Massachusetts Inst Technology pufa and / or uridine-containing compositions and methods of using them
US7427712B2 (en) * 2005-11-22 2008-09-23 Siemens Power Generation, Inc. Apparatus and method to prevent loss of conductive ground electrode
WO2007122707A1 (en) * 2006-04-19 2007-11-01 Ibiden Co., Ltd. Process for producing honeycomb structure
WO2007139490A1 (en) * 2006-05-29 2007-12-06 Abb Technology Ltd. Stator winding insulation
US8288911B2 (en) * 2006-12-15 2012-10-16 General Electric Company Non-linear dielectrics used as electrical insulation for rotating electrical machinery
US20080143465A1 (en) * 2006-12-15 2008-06-19 General Electric Company Insulation system and method for a transformer
EP1950866A1 (en) 2007-01-25 2008-07-30 ALSTOM Technology Ltd Method for manufacturing a conductor bar of a rotating electrical machine and a conductor bar manufactured according to this method
US8698367B2 (en) * 2008-04-17 2014-04-15 Synchrony, Inc. High-speed permanent magnet motor and generator with low-loss metal rotor
JP2011520410A (en) 2008-04-18 2011-07-14 シンクロニー，インコーポレイテッド Magnetic thrust bearings using integrated electronics.
US9583991B2 (en) * 2009-06-24 2017-02-28 Synchrony, Inc. Systems, devices, and/or methods for managing magnetic bearings
EP2586121B1 (en) 2010-06-23 2019-12-11 Synchrony, Inc. Split magnetic thrust bearing
EP2403113A1 (en) * 2010-07-02 2012-01-04 Alstom Technology Ltd Stator Bar
US20150028701A1 (en) * 2010-07-02 2015-01-29 Alstom Technology Ltd Stator bar
CN102185433B (en) * 2011-01-26 2012-09-26 吴江固德电材系统股份有限公司 Semiautomatic tape lapping machine for demolding tapes
CN102185438A (en) * 2011-01-26 2011-09-14 吴江固德电材系统有限公司 Tape lapping head of demolding tape lapping machine
CN102185435B (en) * 2011-01-26 2012-09-26 吴江固德电材系统股份有限公司 Wrapping head
EP2587638A1 (en) 2011-10-26 2013-05-01 Siemens Aktiengesellschaft Corona protection for an electric machine
TW201412178A (en) * 2012-09-14 2014-03-16 Xin Zhuan Invest Co Ltd Heating device of electric carpet, and manufacturing method and heating system thereof
JP2014087101A (en) * 2012-10-19 2014-05-12 Toyota Motor Corp Stator of dynamo-electric machine
US9928935B2 (en) 2013-05-31 2018-03-27 General Electric Company Electrical insulation system
DE102014219440A1 (en) 2014-09-25 2016-03-31 Siemens Aktiengesellschaft Corona protection system for an electric machine and electric machine
DE102014219439A1 (en) 2014-09-25 2016-03-31 Siemens Aktiengesellschaft Corona protection system for an electrical machine
DE102014219441A1 (en) 2014-09-25 2016-03-31 Siemens Aktiengesellschaft Corona protection system and electrical machine
TWI622249B (en) * 2016-11-25 2018-04-21 台達電子工業股份有限公司 Stator
DE102018128589A1 (en) * 2018-11-14 2020-05-14 Ebm-Papst Mulfingen Gmbh & Co. Kg Insulation system to reduce the insulation damage to the windings of an electric motor
DE102019206663A1 (en) * 2019-05-09 2020-11-12 Audi Ag Stator for an electric machine
CN111371268B (en) * 2020-04-24 2022-05-24 哈尔滨电机厂有限责任公司 Method for manufacturing stator bar with double-layer composite main insulation structure
US11588385B2 (en) * 2020-10-30 2023-02-21 GM Global Technology Operations LLC Method for gel curing a varnish of a stator assembly
JP7203285B1 (en) * 2021-09-21 2023-01-12 三菱電機株式会社 Rotating machine coil, manufacturing method thereof, and rotating machine
CN115814302A (en) * 2021-09-29 2023-03-21 宁德时代新能源科技股份有限公司 Processing method of box body assembly and box body assembly

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH546501A (en) * 1972-06-20 1974-02-28 Bbc Brown Boveri & Cie METHOD OF MANUFACTURING BARRIERS FOR THE STATOR WINDING OF A ROTATING ELECTRIC HIGH VOLTAGE MACHINE.
CA1016586A (en) 1974-02-18 1977-08-30 Hubert G. Panter Grounding of outer winding insulation to cores in dynamoelectric machines
US4112183A (en) * 1977-03-30 1978-09-05 Westinghouse Electric Corp. Flexible resin rich epoxide-mica winding tape insulation containing organo-tin catalysts
US4173593A (en) * 1977-04-05 1979-11-06 Westinghouse Electric Corp. Metal acetylacetonate latent accelerators for an epoxy-styrene resin system
US4207482A (en) 1978-11-14 1980-06-10 Westinghouse Electric Corp. Multilayered high voltage grading system for electrical conductors
US4356417A (en) 1979-05-17 1982-10-26 Westinghouse Electric Corp. Catechol or pyrogallol containing flexible insulating tape having low gel time
US4335367A (en) * 1979-08-17 1982-06-15 Tokyo Shibaura Denki Kabushiki Kaisha Electrically insulated coil
US4576856A (en) * 1980-11-19 1986-03-18 Hitachi Chemical Company, Ltd. Reconstituted mica materials, reconstituted mica prepreg materials, reconstituted mica products and insulated coils
US5115556A (en) * 1981-03-18 1992-05-26 George Gavrilidis Method of manufacturing windings for electromagnetic machines
US4473765A (en) 1982-09-30 1984-09-25 General Electric Company Electrostatic grading layer for the surface of an electrical insulation exposed to high electrical stress
US4723083A (en) * 1983-11-25 1988-02-02 General Electric Company Electrodeposited mica on coil bar connections and resulting products
US4724345A (en) * 1983-11-25 1988-02-09 General Electric Company Electrodepositing mica on coil connections
GB8425377D0 (en) * 1984-10-08 1984-11-14 Ass Elect Ind High voltage cables
US4634911A (en) 1985-04-16 1987-01-06 Westinghouse Electric Corp. High voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength
US4724600A (en) 1985-04-16 1988-02-16 Westinghouse Electric Corp. Method of making a high voltage dynamoelectric machine with selectively increased coil turn-to-turn insulation strength
US4704322A (en) * 1986-09-22 1987-11-03 Essex Group, Inc. Resin rich mica tape
CH669277A5 (en) 1986-10-14 1989-02-28 Cossonay Cableries Trefileries High tension electric cable with extruded insulating layers - consists of synthetic materials of different dielectric properties sandwiched between 2 semiconducting layers
US4948758A (en) * 1988-10-24 1990-08-14 Corning Incorporated Fiber-reinforced composite comprising mica matrix or interlayer
CH677565A5 (en) * 1988-11-10 1991-05-31 Asea Brown Boveri
US5416373A (en) * 1992-05-26 1995-05-16 Hitachi, Ltd. Electrically insulated coils and a method of manufacturing thereof
EP0586753A1 (en) * 1992-08-25 1994-03-16 Siemens Aktiengesellschaft Insulating tape for a winding of an electrical machine
US5801334A (en) * 1995-08-24 1998-09-01 Theodorides; Demetrius C. Conductor (turn) insulation system for coils in high voltage machines
US5623174A (en) 1995-12-08 1997-04-22 General Electric Co. Internal grading of generator stator bars with electrically conducting thermoplastic paints
US5973269A (en) 1996-04-16 1999-10-26 General Electric Canada Inc. Multi-layer insulation for winding elements of dynamoelectric machines (D.E.M.s)
SE510590C2 (en) 1997-09-30 1999-06-07 Asea Brown Boveri Electrical insulation for a conductor arranged for generating a magnetic field in a plurality of turns, a method for insulating the conductor and using the insulation
DE19811370A1 (en) 1998-03-16 1999-09-23 Abb Research Ltd Insulated conductor, especially for high voltage windings of electrical machines

Also Published As

Publication number Publication date
JP3721359B2 (en) 2005-11-30
KR100532255B1 (en) 2005-11-29
EP1319266A1 (en) 2003-06-18
MXPA03002268A (en) 2004-12-03
ATE284086T1 (en) 2004-12-15
US20020029897A1 (en) 2002-03-14
BR0113868A (en) 2003-07-22
EP1319266B1 (en) 2004-12-01
WO2002023696A1 (en) 2002-03-21
CA2344564A1 (en) 2002-03-14
CN1230963C (en) 2005-12-07
ES2232659T3 (en) 2005-06-01
CN1455978A (en) 2003-11-12
CA2344564C (en) 2008-07-22
US6750400B2 (en) 2004-06-15
DE60107587T2 (en) 2005-12-15
DE60107587D1 (en) 2005-01-05
NZ522910A (en) 2005-07-29
JP2004508800A (en) 2004-03-18
KR20030045805A (en) 2003-06-11

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