EP0249796B1 - Limitateur de surtension à décharge à gaz - Google Patents

Limitateur de surtension à décharge à gaz Download PDF

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Publication number
EP0249796B1
EP0249796B1 EP87107985A EP87107985A EP0249796B1 EP 0249796 B1 EP0249796 B1 EP 0249796B1 EP 87107985 A EP87107985 A EP 87107985A EP 87107985 A EP87107985 A EP 87107985A EP 0249796 B1 EP0249796 B1 EP 0249796B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
gas discharge
gas
surge arrester
voltage surge
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.)
Expired - Lifetime
Application number
EP87107985A
Other languages
German (de)
English (en)
Other versions
EP0249796A1 (fr
Inventor
Jürgen Boy
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0249796A1 publication Critical patent/EP0249796A1/fr
Application granted granted Critical
Publication of EP0249796B1 publication Critical patent/EP0249796B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/24—Selection of materials for electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T1/00—Details of spark gaps
    • H01T1/20—Means for starting arc or facilitating ignition of spark gap
    • H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/16—Overvoltage arresters using spark gaps having a plurality of gaps arranged in series

Definitions

  • the invention is in the field of electrical components and can be used in the structural design of a gas discharge surge arrester which has at least two discharge paths connected in series.
  • each discharge section consists of two electrodes and an insulating tube, the two electrodes each reaching into the openings of an insulating tube and being connected to the latter in a vacuum-tight manner.
  • the two electrodes inserted into an insulating tube each have opposing end faces; several such modules are arranged one behind the other in the axial direction.
  • the electrodes arranged between the two outer electrodes are each provided with a bore lying in the axial direction, so that the discharge paths arranged one behind the other have a common gas space (US Pat. No. 3,866,091).
  • Such a surge arrester has a short response time, but a relatively long deionization time.
  • the invention has for its object to design the surge arrester so that it is suitable as a switch for high voltages and high frequencies; it should therefore have an increased glow burning voltage with a reduced deionization time.
  • High switching frequencies here means a switching frequency of more than 1000 switching / s, a high switching frequency in the sense of the invention is a frequency in the kHz range.
  • the insulating tube and the two electrodes of each discharge gap form a closed gas space which has a hydrogen-containing gas filling, that the electrodes consist of copper and that an activation compound made of sodium silicate and a metal component is placed on the end faces of the electrodes is applied.
  • a filling gas that is easy to handle during production consists of hydrogen and argon, the hydrogen content being between 5% and 20%.
  • Sodium silicate with an admixed metal component e.g. nickel
  • an ignition voltage of 1 kV and a glow burning voltage> 150 V can be achieved for each individual arrester. This can be used, for example, to implement four thousand switching operations / second in a resonant circuit for igniting high-pressure gas discharge lamps without extinguishing failures influencing the functional reliability.
  • the ignition voltage can be e.g. 7kV to 8kV can be set.
  • FIGS. 1 and 2 show arrangements according to the invention in a sectional view.
  • the electrodes 3, 4 and 5 are made of copper.
  • the individual gas discharge spaces 6, each formed by an insulating tube 9 and two electrodes 3, 4, are filled with a hydrogen-containing filling gas. This selection of materials significantly reduces deionization time.
  • the end faces 7 of the electrodes 3, 4 and 5 are each provided with an activation layer 8 made of sodium silicate and a metal component. This ensures a relatively low arc voltage in conjunction with a sufficiently high glow voltage and greatly reduces the evaporation of electrode material during the passage of current.
  • a frequency of 4 kHz can be switched off, for example, and an ignition voltage of 1 kV per individual arrester 1, 2 and a glow voltage of 150 V per individual arrester 1, 2, so that the gas discharge paths formed from n individual arresters (FIGS. 1, 2) each have an ignition voltage of nx 1kV and a glow lamp voltage of nx 150V.
  • An advantageous application of the invention is the ignition of high-voltage gas discharge lamps.
  • An embodiment with a total of eight individual arresters 1, 2 can advantageously be used for such an application.
  • the switching problems that usually occur here result in four thousand switching operations / second and can be handled without any problems using the discharge path according to the invention.
  • the gas discharge path can either consist of the series connection of discrete individual arresters (FIG. 1) or in a composite embodiment in which the individual arresters are arranged axially to one another and adjacent electrodes are soldered to one another or consist of one piece.
  • the electrodes 5 which are integrally connected to one another advantageously consist of solid material (FIG. 2). This achieves a higher heat capacity, which enables a higher stability of the ignition voltage during operation.
  • the mechanical stresses caused by temperature fluctuations are harmless due to the symmetrical structure of the electrodes and because of the insulating material tubes 9 adjoining on both sides in the usual dimensions.
  • the insulating material tubes 9 are preferably made of ceramic.

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Gas Separation By Absorption (AREA)
  • Glass Compositions (AREA)
  • Treating Waste Gases (AREA)
  • Discharge Lamp (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (5)

  1. Dispositif de dérivation de surtension à décharge dans un gaz, comprenant au moins deux zones de décharge disposées en série,
    dans lequel chaque zone de décharge est constituée de deux électrodes et d'un tube en matière isolante et dans lequel les deux électrodes pénètrent respectivement dans les ouvertures du tube isolant et sont reliées à celui-ci de manière étanche au vide, les deux électrodes comportant des surfaces frontales opposées et l'espace intérieur des zones de décharge étant empli d'un gaz de remplissage,
    caractérisé en ce que le tube isolant (9) et les deux électrodes (3, 4) de chaque zone de décharge forment une chambre à gaz fermée (6) qui est emplie d'un gaz contenant de 1'hydrogène,
    en ce que les électrodes (3, 4) sont en cuivre,
    et en ce que, sur les surfaces frontales des électrodes, est déposée une composition d'activation (8) en silicate de sodium et en un constituant métallique.
  2. Dispositif de dérivation de surtension à décharge dans un gaz, comprenant au moins deux zones de décharge montées en série suivant la revendication 1, caractérisé en ce que le gaz de remplissage est constitué de H₂ et de Ar, et en ce que la proportion de H₂ est comprise entre 5 % en volume et 20 % en volume.
  3. Dispositif de dérivation de surtension à décharge dans un gaz, comprenant au moins deux zones de décharge disposées en série suivant la revendication 1 ou 2, caractérisé en ce que les dispositifs individuels de dérivation de la surtension sont disposés coaxialement entre eux et les électrodes adjacentes sont soudées les unes aux autres.
  4. Dispositif de dérivation de surtension à décharge dans un gaz, comprenant au moins deux zones de décharge disposées en série suivant la revendication 1 ou 2, caractérisé en ce que les dispositifs individuels de dérivation de la surtension sont disposés coaxialement entre eux et en ce que les électrodes adjacentes sont reliées entre elles d'une seule pièce et sont en un matériau plein.
  5. Utilisation d'un dispositif de dérivation de surtension à décharge dans un gaz, comprenant au moins deux zones de décharge disposées en série suivant l'une des revendications 1 à 4, pour l'amorçage de lampes à décharge dans un gaz haute pression.
EP87107985A 1986-06-18 1987-06-02 Limitateur de surtension à décharge à gaz Expired - Lifetime EP0249796B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620344 1986-06-18
DE3620344 1986-06-18

Publications (2)

Publication Number Publication Date
EP0249796A1 EP0249796A1 (fr) 1987-12-23
EP0249796B1 true EP0249796B1 (fr) 1991-02-27

Family

ID=6303171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107985A Expired - Lifetime EP0249796B1 (fr) 1986-06-18 1987-06-02 Limitateur de surtension à décharge à gaz

Country Status (4)

Country Link
US (1) US4797778A (fr)
EP (1) EP0249796B1 (fr)
JP (1) JP2561900B2 (fr)
DE (1) DE3768147D1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3723571C2 (de) * 1987-07-16 1995-05-04 Siemens Ag Hochspannungsfunkenstrecke
JP2860335B2 (ja) * 1990-09-25 1999-02-24 矢崎総業株式会社 放電管
JPH0536459A (ja) * 1991-07-31 1993-02-12 Okaya Electric Ind Co Ltd 放電型サージ吸収素子
IL124696A (en) * 1998-05-29 2007-05-15 Rafael Advanced Defense Sys Compact multistage spark-gap switch
JP2002270329A (ja) 2001-03-09 2002-09-20 Shinko Electric Ind Co Ltd ガス封入スイッチング放電管
EP1835578A1 (fr) * 2004-12-06 2007-09-19 Array Prot Technology Inc. Parafoudre
US7301122B2 (en) * 2005-04-04 2007-11-27 Illinois Tool Works Inc. Inline spark gap assembly
DE102005016848A1 (de) * 2005-04-12 2006-10-19 Epcos Ag Überspannungsableiter
WO2007033247A2 (fr) * 2005-09-14 2007-03-22 Littelfuse, Inc. Limiteur de surtension rempli de gaz, compose d'activation, rubans d'amorçage et procede associe
JP5304997B2 (ja) * 2008-10-09 2013-10-02 三菱マテリアル株式会社 サージアブソーバ
DE102009006545B4 (de) * 2009-01-29 2017-08-17 Epcos Ag Überspannungsableiter und Anordnung von mehreren Überspannungsableitern zu einem Array

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR990361A (fr) * 1948-07-06 1951-09-20 Oerlikon Maschf Dispositif de dérivation de surtension
US3399147A (en) * 1966-05-18 1968-08-27 Eg & G Inc Gas mixture for electric flashtubes
US3366435A (en) * 1967-03-24 1968-01-30 Gen Electric Method of evacuation for triggerable vacuum discharge devices
US3454811A (en) * 1967-04-18 1969-07-08 Bell Telephone Labor Inc Gas tube surge (overload) protection device
US3866091A (en) * 1972-10-16 1975-02-11 Joslyn Mfg & Supply Co Unitary series spark gap with aligned apertures
BE789890A (fr) * 1971-10-12 1973-02-01 Western Electric Co Appareil de protection contre les surtensions, a tube a decharge, et son procede de realisation
SE363071B (fr) * 1972-05-08 1974-01-07 Von Tell Trading Co Ab
SE360507B (fr) * 1972-11-08 1973-09-24 Ericsson Telefon Ab L M
US3904910A (en) * 1973-11-23 1975-09-09 Ericsson Telefon Ab L M Gas-filled discharge overvoltage protector
DE2705885A1 (de) * 1977-02-11 1978-08-17 Siemens Ag Gasentladungs-ueberspannungsableiter
US4293887A (en) * 1979-05-04 1981-10-06 Northern Telecom Inc. Surge arrester with improved impulse ratio
JPS6341748Y2 (fr) * 1979-06-26 1988-11-01
DE3042847A1 (de) * 1980-11-13 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Gasentladungs-ueberspannungsableiter mit konzentrisch umschliessender fassung
US4407849A (en) * 1981-12-23 1983-10-04 Bell Telephone Laboratories, Incorporated Process for improving electrode coatings
US4404234A (en) * 1981-12-23 1983-09-13 Bell Telephone Laboratories, Incorporated Electrode coating process
DE3207663A1 (de) * 1982-03-03 1983-09-08 Siemens AG, 1000 Berlin und 8000 München Ueberspannungsableiter mit einem gasgefuellten gehaeuse
JPS58204483A (ja) * 1982-05-25 1983-11-29 株式会社　水戸テツク 避雷管

Also Published As

Publication number Publication date
JP2561900B2 (ja) 1996-12-11
DE3768147D1 (de) 1991-04-04
EP0249796A1 (fr) 1987-12-23
US4797778A (en) 1989-01-10
JPS6324576A (ja) 1988-02-01

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