BR7901432A - Processo de tratamento de varistores de oxido de metal para reduzir a perda de potencia - Google Patents

Processo de tratamento de varistores de oxido de metal para reduzir a perda de potencia

Info

Publication number
BR7901432A
BR7901432A BR7901432A BR7901432A BR7901432A BR 7901432 A BR7901432 A BR 7901432A BR 7901432 A BR7901432 A BR 7901432A BR 7901432 A BR7901432 A BR 7901432A BR 7901432 A BR7901432 A BR 7901432A
Authority
BR
Brazil
Prior art keywords
metal oxide
treatment process
power loss
reduce power
oxide varistor
Prior art date
Application number
BR7901432A
Other languages
English (en)
Inventor
E Sakshaug
H Ellis
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of BR7901432A publication Critical patent/BR7901432A/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
    • H01C7/102—Varistor boundary, e.g. surface layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49101—Applying terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)
BR7901432A 1978-03-10 1979-03-08 Processo de tratamento de varistores de oxido de metal para reduzir a perda de potencia BR7901432A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/885,294 US4148135A (en) 1978-03-10 1978-03-10 Method of treating metal oxide varistors to reduce power loss

Publications (1)

Publication Number Publication Date
BR7901432A true BR7901432A (pt) 1979-10-09

Family

ID=25386577

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7901432A BR7901432A (pt) 1978-03-10 1979-03-08 Processo de tratamento de varistores de oxido de metal para reduzir a perda de potencia

Country Status (8)

Country Link
US (1) US4148135A (pt)
JP (1) JPS54132761A (pt)
BR (1) BR7901432A (pt)
DE (1) DE2905768A1 (pt)
ES (1) ES478243A1 (pt)
FR (1) FR2419572A1 (pt)
SE (1) SE7902053L (pt)
ZA (1) ZA79462B (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052856B (en) * 1979-06-18 1983-08-10 Gen Electric Coating protecting varistor during manufacture
US4371860A (en) * 1979-06-18 1983-02-01 General Electric Company Solderable varistor
US4409728A (en) * 1980-10-27 1983-10-18 General Electric Company Method of making a stable high voltage DC varistor
US4317101A (en) * 1980-10-27 1982-02-23 General Electric Company Stable high voltage DC varistor
US4423404A (en) * 1982-02-01 1983-12-27 Electric Power Research Institute, Inc. Non-linear resistor stack and its method of assembly
DE3334533A1 (de) * 1983-09-23 1985-04-04 Transformatoren Union Ag, 7000 Stuttgart Ueberspannungsableiter
DE3405834A1 (de) * 1984-02-17 1985-08-22 Siemens AG, 1000 Berlin und 8000 München Varistor aus einer scheibe aus durch dotierung halbleitendem zinkoxid-material und verfahren zur herstellung dieses varistors
JPS62274602A (ja) * 1986-05-22 1987-11-28 日本碍子株式会社 電圧非直線抵抗体の製造法
JPS6375003U (pt) * 1986-11-06 1988-05-19
DE3917570A1 (de) * 1989-05-30 1990-12-06 Siemens Ag Elektrisches keramisches bauelement, insbesondere kaltleiter, mit hoher elektrischer ueberschlagsfestigkeit im elektrodenfreien bereich und verfahren zu seiner herstellung
GB9005990D0 (en) * 1990-03-16 1990-05-09 Ecco Ltd Varistor powder compositions
GB2242068C (en) * 1990-03-16 1996-01-24 Ecco Ltd Varistor manufacturing method and apparatus
US5973588A (en) 1990-06-26 1999-10-26 Ecco Limited Multilayer varistor with pin receiving apertures
GB2242066B (en) * 1990-03-16 1994-04-27 Ecco Ltd Varistor structures
GB2242067B (en) * 1990-03-16 1994-05-04 Ecco Ltd Varistor configurations
US6183685B1 (en) 1990-06-26 2001-02-06 Littlefuse Inc. Varistor manufacturing method
US5569495A (en) * 1995-05-16 1996-10-29 Raychem Corporation Method of making varistor chip with etching to remove damaged surfaces
US5721664A (en) * 1996-12-16 1998-02-24 Raychem Corporation Surge arrester

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723175A (en) * 1967-10-09 1973-03-27 Matsushita Electric Ind Co Ltd Nonlinear resistors of bulk type
JPS549294B2 (pt) * 1972-02-16 1979-04-23
US3928245A (en) * 1973-07-09 1975-12-23 Gen Electric Metal oxide voltage-variable resistor composition
US3857174A (en) * 1973-09-27 1974-12-31 Gen Electric Method of making varistor with passivating coating
US4031498A (en) * 1974-10-26 1977-06-21 Kabushiki Kaisha Meidensha Non-linear voltage-dependent resistor

Also Published As

Publication number Publication date
ES478243A1 (es) 1979-05-16
SE7902053L (sv) 1979-09-11
DE2905768A1 (de) 1979-09-13
FR2419572A1 (fr) 1979-10-05
JPS54132761A (en) 1979-10-16
ZA79462B (en) 1980-02-27
US4148135A (en) 1979-04-10

Similar Documents

Publication Publication Date Title
BR7901432A (pt) Processo de tratamento de varistores de oxido de metal para reduzir a perda de potencia
BR7905180A (pt) Aperfeicoamento em processo para reducao de oxido de ferro em um forno de reducao direta
BR7900885A (pt) Estrutura filtro e processo para fazer a mesma
BR7901936A (pt) Processo para preparar um copolimero de alquilacrilato-alquileno,silano-modificado,hidro-curavel e copolimero de alqulacrilato-alquileno,silano-modificado
BR7801000A (pt) Processo para efetuar contato liquido-liquido e aparelho
BR7707495A (pt) Conjunto de terminal,terminal e processo para formar um conjunto de terminal
BR7705470A (pt) Processo para evitar a dessublimacao de um composto,e aparelho de destilacao aperfeicoado
BR7802499A (pt) Processo para produzir beta-l-frutofuranosil alfa-l-glucopiranosidio
BR7907496A (pt) Processo para a preparacao de ureia
IT1122972B (it) Temporizzatore di processo perfezionato
BR7908006A (pt) Fechos corredicos e processo para obte-los
BR7608805A (pt) Processo para reducao em batelada de um oxido de metal para metal esponja
BR7900690A (pt) Processo para preparar mercaptetos de metal alcalino
BR8102608A (pt) Processo para preparar mercapto-alcoois
BR7806180A (pt) Processo para preparar 2,3-diidro-7-benzofuranol
BR7902600A (pt) Processo para a preparacao de ciclo-hexanona,e instalacao para realizar o mesmo
BR7904057A (pt) Processo fisico-bioquimico
BR7904053A (pt) Processo de fabricacao de um rotor
BR7908023A (pt) Processo para produzir um catalisador de prata
BR7906146A (pt) Processo para recuperacao de teores de metal
BR7902992A (pt) Processo de aperfeicoamento das caracteristicas de elevacao de tensao de varistores
ATA580879A (de) Industriefilter mit hohem wirkungsgrad
BR7901064A (pt) Processo para preparar 3-amido-5-(t-butil)-isoxazol
BR8101607A (pt) Processo para preparar eteres haloalquilicos
BR7907104A (pt) Dentifricio aperfeicoado e processo para preparar um dentifricio