BRPI0701878A2 - sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado - Google Patents

sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado

Info

Publication number
BRPI0701878A2
BRPI0701878A2 BRPI0701878-9A BRPI0701878A BRPI0701878A2 BR PI0701878 A2 BRPI0701878 A2 BR PI0701878A2 BR PI0701878 A BRPI0701878 A BR PI0701878A BR PI0701878 A2 BRPI0701878 A2 BR PI0701878A2
Authority
BR
Brazil
Prior art keywords
arrester
modified
model parameters
parameters
zno
Prior art date
Application number
BRPI0701878-9A
Other languages
English (en)
Inventor
Nelson Jhoe Batistela
James Silveira
Patrick Kuo-Peng
Nelson Sadowski
Joao Pedro Assumpcao Bastos
Renato Carlson
Original Assignee
Univ Fed De Santa Catarina Ufsc
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 Univ Fed De Santa Catarina Ufsc filed Critical Univ Fed De Santa Catarina Ufsc
Priority to BRPI0701878-9A priority Critical patent/BRPI0701878A2/pt
Priority to US12/670,404 priority patent/US20100228531A1/en
Priority to PCT/BR2008/000214 priority patent/WO2009012550A2/en
Publication of BRPI0701878A2 publication Critical patent/BRPI0701878A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/10—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
    • H01C7/105—Varistor cores
    • H01C7/108—Metal oxide
    • H01C7/112—ZnO type

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)

Abstract

SISTEMA DE ANÁLISE DE DEGRADAÇçO DE VARISTORES DE àXIDO DE ZINCO (ZNO) UTILIZANDO OS PARÂMETROS DO MODELO LANGEVIN MODIFICADO. É em método de avaliação da vida útil do pára-raios que utiliza a "Função de Langevin Modificada", empregada inicialmente para representar as grandezas magnéticas campo e indução em materiais ferromagnéticos, adaptada para as grandezas próprias da curva característica dos varistores dos pára-raios, corrente e tensão, com medição da variação dos parâmetros do modelo do pára-raios que utiliza a "Função de Langevin Modificada" adaptada, ao longo da vida do pára-raios, avaliando o estado funcional do pára-raios com base na variação dos três parâmetros do modelo desenvolvido de varistores de pára-raios, utilizando um sistema de medição de corrente de fuga de pára-raios, com técnicas para a obtenção da parcela da corrente resistiva que flui pelo varistor, e com técnicas de determinação dos parâmetros do modelo que utiliza um software de encontro dos parâmetros do modelo de varistor.
BRPI0701878-9A 2007-07-25 2007-07-25 sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado BRPI0701878A2 (pt)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BRPI0701878-9A BRPI0701878A2 (pt) 2007-07-25 2007-07-25 sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado
US12/670,404 US20100228531A1 (en) 2007-07-25 2008-07-22 Zinc oxide (zno) varistors degradation analysis system using parameters from the modified longevin model
PCT/BR2008/000214 WO2009012550A2 (en) 2007-07-25 2008-07-22 Zinc oxide (zno) varistors degradation analysis system using parameters from the modified longevin model

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0701878-9A BRPI0701878A2 (pt) 2007-07-25 2007-07-25 sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado

Publications (1)

Publication Number Publication Date
BRPI0701878A2 true BRPI0701878A2 (pt) 2009-03-10

Family

ID=40281870

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0701878-9A BRPI0701878A2 (pt) 2007-07-25 2007-07-25 sistema de anÁlise de degradaÇço de varistores de àxido de zinco (zno) utilizando os parÂmetros do modelo langevin modificado

Country Status (3)

Country Link
US (1) US20100228531A1 (pt)
BR (1) BRPI0701878A2 (pt)
WO (1) WO2009012550A2 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110133460B (zh) * 2019-05-30 2021-07-13 国网湖南省电力有限公司 氧化锌电阻片的老化性能测试评估方法
CN113075523A (zh) * 2021-03-22 2021-07-06 云南电网有限责任公司保山供电局 ZnO阀片直流伏安特性新型拟合方法
CN114325176B (zh) * 2021-12-09 2023-08-08 国网河南省电力公司电力科学研究院 一种氧化锌避雷器电阻阀片受潮老化的性能评估方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH068210B2 (ja) * 1988-02-18 1994-02-02 ソマール株式会社 バリスタ材料及びその製法
DE3826356A1 (de) * 1988-08-03 1990-02-08 Philips Patentverwaltung Verfahren zur herstellung eines nichtlinearen spannungsabhaengigen widerstandes
US7667344B2 (en) * 2005-07-15 2010-02-23 International Broadband Electric Communications, Inc. Coupling communications signals to underground power lines
US8434909B2 (en) * 2007-10-09 2013-05-07 Flex Lighting Ii, Llc Light emitting display with light mixing within a film

Also Published As

Publication number Publication date
WO2009012550A3 (en) 2009-06-18
US20100228531A1 (en) 2010-09-09
WO2009012550A2 (en) 2009-01-29

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]