EP0859377A3 - Pillar-like, high current stable resistor, especially varistor based on metal oxide, and manufacturing process of such a resistor - Google Patents

Pillar-like, high current stable resistor, especially varistor based on metal oxide, and manufacturing process of such a resistor Download PDF

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Publication number
EP0859377A3
EP0859377A3 EP97810970A EP97810970A EP0859377A3 EP 0859377 A3 EP0859377 A3 EP 0859377A3 EP 97810970 A EP97810970 A EP 97810970A EP 97810970 A EP97810970 A EP 97810970A EP 0859377 A3 EP0859377 A3 EP 0859377A3
Authority
EP
European Patent Office
Prior art keywords
resistor
metal oxide
pillar
manufacturing process
high current
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.)
Withdrawn
Application number
EP97810970A
Other languages
German (de)
French (fr)
Other versions
EP0859377A2 (en
Inventor
Michael Hagemeister
Wolfgang Kluge
René Rudolph
Klaus Christian Schüler
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.)
ABB Schweiz AG
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0859377A2 publication Critical patent/EP0859377A2/en
Publication of EP0859377A3 publication Critical patent/EP0859377A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • 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

Landscapes

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

Abstract

Der Widerstand ist säulenförmig ausgebildet und weist einen zwischen zwei parallel ausgerichteten, ebenen Elektroden angeordneten zylinderförmigen Widerstandskörper aus einem keramischen Werkstoff auf. Vorzugsweise ist der Widerstand ein Varistor auf der Basis eines Metalloxids und dient dann als spannungsbegrenzendes Element in einem Überspannungsableiter.The resistor is columnar and has one between two parallel, flat electrodes arranged cylindrical resistance body from a ceramic material. The resistance is preferably on Varistor based on a metal oxide and then serves as voltage-limiting element in a surge arrester.

Die Festigkeit des keramischen Materials und die Länge des Widerstands werden möglichst gross gewählt. Jedoch ist die Länge des Widerstands höchstens so gross, dass bei Belastung des Widerstands in einem elektrischen Feld vorgegebener Grösse mit mindestens einem hochenergetischen Stromimpuls definierter Amplitude, Form und Dauer eine Beschädigung des keramischen Widerstandskörpers infolge thermisch erzeugter Druckwellen vermieden wird.

Figure 00000001
The strength of the ceramic material and the length of the resistance are chosen to be as large as possible. However, the length of the resistor is at most so large that damage to the ceramic resistor body due to thermally generated pressure waves is avoided when the resistor is loaded in an electrical field of a predetermined size with at least one high-energy current pulse of defined amplitude, shape and duration.
Figure 00000001
EP97810970A 1997-01-16 1997-12-11 Pillar-like, high current stable resistor, especially varistor based on metal oxide, and manufacturing process of such a resistor Withdrawn EP0859377A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19701243A DE19701243A1 (en) 1997-01-16 1997-01-16 Column-shaped, high-current-resistant resistor, in particular varistor based on a metal oxide, and method for producing such a resistor
DE19701243 1997-01-16

Publications (2)

Publication Number Publication Date
EP0859377A2 EP0859377A2 (en) 1998-08-19
EP0859377A3 true EP0859377A3 (en) 1998-12-09

Family

ID=7817483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810970A Withdrawn EP0859377A3 (en) 1997-01-16 1997-12-11 Pillar-like, high current stable resistor, especially varistor based on metal oxide, and manufacturing process of such a resistor

Country Status (3)

Country Link
US (1) US6342828B1 (en)
EP (1) EP0859377A3 (en)
DE (1) DE19701243A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802116B2 (en) * 2001-03-20 2004-10-12 Abb Ab Method of manufacturing a metal-oxide varistor with improved energy absorption capability
US7093881B2 (en) * 2003-02-07 2006-08-22 William Rusu Hard tonneau cover
SE527949C2 (en) * 2004-12-22 2006-07-18 Abb Research Ltd Method of producing a varistor
IES20060769A2 (en) * 2005-10-19 2007-04-04 Littelfuse Ireland Dev Company A varistor and production method
WO2008035319A1 (en) * 2006-09-19 2008-03-27 Littelfuse Ireland Development Company Limited Manufacture of varistors comprising a passivation layer
LU100140B1 (en) * 2017-03-15 2018-09-19 Abb Schweiz Ag Circuit Breaker having Semiconductor Switch Element and Energy Absorbing Device
DE102017214402B4 (en) * 2017-08-18 2022-03-03 Phoenix Contact Gmbh & Co. Kg Surge protection device with varistors
CN113363034B (en) * 2021-06-29 2022-11-18 西安西电避雷器有限责任公司 Nonlinear metal oxide rod resistor and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196370A1 (en) * 1985-02-07 1986-10-08 BBC Brown Boveri AG Method for the production of an overvoltage diversion utilizing a ZnO-based varistor, and overvoltage diversion thus produced

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753198A (en) * 1969-09-19 1973-08-14 Denki Onkyo Co Ltd Varistors
US3806765A (en) * 1972-03-01 1974-04-23 Matsushita Electric Ind Co Ltd Voltage-nonlinear resistors
US4069465A (en) * 1976-07-12 1978-01-17 Allen-Bradley Company Cylindrical varistor and method of making the same
US4377541A (en) * 1978-08-21 1983-03-22 General Electric Company Process for preparing low voltage varistors
US4296002A (en) * 1979-06-25 1981-10-20 Mcgraw-Edison Company Metal oxide varistor manufacture
DE3566184D1 (en) * 1984-06-22 1988-12-15 Hitachi Ltd Oxide resistor
US4638284A (en) * 1984-12-05 1987-01-20 General Electric Corp. Tubular varistor arrangement
US5231370A (en) * 1990-08-29 1993-07-27 Cooper Industries, Inc. Zinc oxide varistors and/or resistors
DE4119984A1 (en) * 1991-06-18 1992-12-24 Hoechst Ag RESISTIVE CURRENT LIMITER
US5366935A (en) * 1994-03-14 1994-11-22 Hubbell Incorporated Passivating coating for metal oxide varistors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196370A1 (en) * 1985-02-07 1986-10-08 BBC Brown Boveri AG Method for the production of an overvoltage diversion utilizing a ZnO-based varistor, and overvoltage diversion thus produced

Also Published As

Publication number Publication date
US6342828B1 (en) 2002-01-29
DE19701243A1 (en) 1998-07-23
EP0859377A2 (en) 1998-08-19

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