BR7900771A - Processo para a estabilizacao termica de varistores de oxido metalico e varistores de oxido metalico termicamente estabilizados - Google Patents

Processo para a estabilizacao termica de varistores de oxido metalico e varistores de oxido metalico termicamente estabilizados

Info

Publication number
BR7900771A
BR7900771A BR7900771A BR7900771A BR7900771A BR 7900771 A BR7900771 A BR 7900771A BR 7900771 A BR7900771 A BR 7900771A BR 7900771 A BR7900771 A BR 7900771A BR 7900771 A BR7900771 A BR 7900771A
Authority
BR
Brazil
Prior art keywords
oxide varistors
thermal
metal oxide
stabilized metal
stabilization
Prior art date
Application number
BR7900771A
Other languages
English (en)
Inventor
R Menelly
J Kresge
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 BR7900771A publication Critical patent/BR7900771A/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
    • H01C7/12—Overvoltage protection resistors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
BR7900771A 1978-02-06 1979-02-06 Processo para a estabilizacao termica de varistores de oxido metalico e varistores de oxido metalico termicamente estabilizados BR7900771A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/875,214 US4153921A (en) 1978-02-06 1978-02-06 Thermally stabilized metal oxide varistors

Publications (1)

Publication Number Publication Date
BR7900771A true BR7900771A (pt) 1979-08-28

Family

ID=25365392

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7900771A BR7900771A (pt) 1978-02-06 1979-02-06 Processo para a estabilizacao termica de varistores de oxido metalico e varistores de oxido metalico termicamente estabilizados

Country Status (6)

Country Link
US (1) US4153921A (pt)
JP (1) JPS54116657A (pt)
BR (1) BR7900771A (pt)
DE (1) DE2904150A1 (pt)
FR (1) FR2416553A1 (pt)
SE (1) SE7900918L (pt)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919448B2 (ja) * 1978-03-03 1984-05-07 株式会社日立製作所 避雷器
US4604673A (en) * 1984-05-14 1986-08-05 General Electric Company Distribution transformer with surge protection device
US4779162A (en) * 1987-03-16 1988-10-18 Rte Corporation Under oil arrester
DE3826282A1 (de) * 1988-07-29 1990-02-08 Siemens Ag Elektrische maschine oder apparat mit einer wicklung, die metalloxid-widerstaende zur ueberspannungsbegrenzung aufweist, und verfahren zu ihrer herstellung
NO167618C (no) * 1989-03-20 1991-11-20 Alcatel Stk As Overspenningsavleder for elektriske apparater.
US5661280A (en) * 1995-08-02 1997-08-26 Abb Power T&D Company Inc. Combination of a gas-filled interrupter and oil-filled transformer
US6162159A (en) * 1998-08-24 2000-12-19 Martini; Calvin Duke Ticket dispenser
US20060162903A1 (en) * 2005-01-21 2006-07-27 Bhatti Mohinder S Liquid cooled thermosiphon with flexible partition
US7077189B1 (en) * 2005-01-21 2006-07-18 Delphi Technologies, Inc. Liquid cooled thermosiphon with flexible coolant tubes
US8426736B2 (en) * 2009-07-17 2013-04-23 The Invention Science Fund I Llc Maintaining insulators in power transmission systems
US8692537B2 (en) * 2009-07-17 2014-04-08 The Invention Science Fund I, Llc Use pairs of transformers to increase transmission line voltage
US20110011621A1 (en) * 2009-07-17 2011-01-20 Searete Llc, A Limited Liability Corporation Of The State Of Delaware Smart link coupled to power line
TWI409829B (zh) * 2010-09-03 2013-09-21 Sfi Electronics Technology Inc 一種高溫使用的氧化鋅突波吸收器
EP3570299B1 (en) * 2018-05-18 2021-08-04 ABB Schweiz AG Voltage limiting energy absorber with fast thermal recovery
CN110660549A (zh) * 2019-10-09 2020-01-07 全球能源互联网研究院有限公司 避雷器及输电系统
CN115482980B (zh) * 2022-10-28 2023-11-21 云南电网有限责任公司电力科学研究院 变电站高压设备大通流氧化锌避雷器网状散热装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399502A (en) * 1941-03-13 1946-04-30 Gen Electric Protective holder for electric discharge devices
US3035209A (en) * 1957-10-11 1962-05-15 Gen Electric Transformer cover
US3096496A (en) * 1961-05-11 1963-07-02 Mc Graw Edison Co Overvoltage protective device
US3227983A (en) * 1963-08-07 1966-01-04 Air Reduction Stacked resistor
SE301182B (pt) * 1964-03-12 1968-05-27 Asea Ab
US3313983A (en) * 1965-08-27 1967-04-11 Central Transformer Corp Transformers
US3450945A (en) * 1966-12-06 1969-06-17 Mc Graw Edison Co Circuit switching and protecting arrangement

Also Published As

Publication number Publication date
SE7900918L (sv) 1979-08-07
US4153921A (en) 1979-05-08
JPS54116657A (en) 1979-09-11
DE2904150A1 (de) 1979-08-09
FR2416553A1 (fr) 1979-08-31

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