BR112018009766A2 - método de avaliação inteligente de condição de isolamento principal de isolamento de papel e óleo de transformador - Google Patents

método de avaliação inteligente de condição de isolamento principal de isolamento de papel e óleo de transformador

Info

Publication number
BR112018009766A2
BR112018009766A2 BR112018009766A BR112018009766A BR112018009766A2 BR 112018009766 A2 BR112018009766 A2 BR 112018009766A2 BR 112018009766 A BR112018009766 A BR 112018009766A BR 112018009766 A BR112018009766 A BR 112018009766A BR 112018009766 A2 BR112018009766 A2 BR 112018009766A2
Authority
BR
Brazil
Prior art keywords
insulation
samples
condition
transformer oil
paper
Prior art date
Application number
BR112018009766A
Other languages
English (en)
Other versions
BR112018009766A8 (pt
Inventor
Luna Gilbert
Gao Jun
Yang Lijun
Xiao Liu
Coulibaly Mamadou-Lamine
Liao Ruijin
Lv Yandong
Original Assignee
General Electric Technology Gmbh
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
Application filed by General Electric Technology Gmbh filed Critical General Electric Technology Gmbh
Publication of BR112018009766A2 publication Critical patent/BR112018009766A2/pt
Publication of BR112018009766A8 publication Critical patent/BR112018009766A8/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/62—Testing of transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Testing Relating To Insulation (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

a invenção fornece um método de avaliação inteligente de condição de isolamento principal de isolamento de papel e óleo de transformador que compreende: estabelecer pelo menos um estado padrão; para cada estado padrão, realizar testes de envelhecimento térmico acelerado em uma pluralidade de amostras para colocar as amostras no estado padrão, em que cada uma da pluralidade de amostras passa pelos testes de envelhecimento térmico acelerado por períodos de tempo diferentes; extrair parâmetros de característica de domínio de tempo e frequência de cada uma da pluralidade de amostras; formar um vetor de função com o uso dos parâmetros de característica de domínio de tempo e frequência de cada amostra, e formar uma base de conhecimento a partir de vetores de função de todas as amostras; treinar um classificador com o uso dos vetores de função da base de conhecimento; e avaliar a condição de isolamento principal com o uso do classificador treinado. o método de avaliação inteligente da invenção considera geometria de isolamento, temperatura e óleo de transformador, e, desse modo, é adequado para avaliação em campo de classes de tensão diferentes de condição de isolamento de transformador imerso em óleo.
BR112018009766A 2015-12-01 2015-12-01 método de avaliação inteligente de condição de isolamento principal de isolamento de papel e óleo de transformador BR112018009766A8 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/096085 WO2017091966A1 (en) 2015-12-01 2015-12-01 An intelligent assessment method of main insulation condition of transformer oil paper insulation

Publications (2)

Publication Number Publication Date
BR112018009766A2 true BR112018009766A2 (pt) 2018-11-06
BR112018009766A8 BR112018009766A8 (pt) 2019-02-26

Family

ID=58796121

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018009766A BR112018009766A8 (pt) 2015-12-01 2015-12-01 método de avaliação inteligente de condição de isolamento principal de isolamento de papel e óleo de transformador

Country Status (8)

Country Link
US (1) US20190041450A1 (pt)
EP (1) EP3384298A4 (pt)
JP (1) JP2019504299A (pt)
CN (1) CN108431613A (pt)
BR (1) BR112018009766A8 (pt)
CA (1) CA3006890A1 (pt)
MX (1) MX2018006702A (pt)
WO (1) WO2017091966A1 (pt)

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EP3528266B1 (en) * 2018-02-15 2020-10-21 ABB Power Grids Switzerland AG Insulation of non-liquid immersed transformers
CN108872803B (zh) * 2018-03-29 2020-12-08 福建工程学院 一种基于绝缘介质回复电压的变压器绝缘状态的检测方法
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CN109239546B (zh) * 2018-08-28 2020-05-22 西南交通大学 一种变压器绝缘寿命预测与可靠性测试方法
CN109870635B (zh) * 2019-03-04 2020-11-10 国网陕西省电力公司电力科学研究院 基于活化能迭代修正的油纸绝缘老化状态评估方法及***
CN110009236B (zh) * 2019-04-10 2023-04-18 哈尔滨理工大学 一种油浸式电力变压器内部绝缘老化程度定量评估方法
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CN110889234B (zh) * 2019-12-04 2023-04-07 国网吉林省电力有限公司电力科学研究院 一种油浸式变压器内部绝缘油纸老化寿命评估方法
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Also Published As

Publication number Publication date
BR112018009766A8 (pt) 2019-02-26
JP2019504299A (ja) 2019-02-14
EP3384298A1 (en) 2018-10-10
US20190041450A1 (en) 2019-02-07
MX2018006702A (es) 2018-11-09
CN108431613A (zh) 2018-08-21
CA3006890A1 (en) 2017-06-08
WO2017091966A1 (en) 2017-06-08
EP3384298A4 (en) 2019-07-31

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