EP1961088A1 - Éclateur à haute puissance, étanche de manière non hermétique, encapsulé et résistant à la pression - Google Patents

Éclateur à haute puissance, étanche de manière non hermétique, encapsulé et résistant à la pression

Info

Publication number
EP1961088A1
EP1961088A1 EP07847653A EP07847653A EP1961088A1 EP 1961088 A1 EP1961088 A1 EP 1961088A1 EP 07847653 A EP07847653 A EP 07847653A EP 07847653 A EP07847653 A EP 07847653A EP 1961088 A1 EP1961088 A1 EP 1961088A1
Authority
EP
European Patent Office
Prior art keywords
spark gap
gap according
arc
pressure
transverse bottom
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.)
Granted
Application number
EP07847653A
Other languages
German (de)
English (en)
Other versions
EP1961088B1 (fr
Inventor
Arnd Ehrhardt
Michael Waffler
Stephan Hierl
Uwe Strangfeld
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.)
Dehn SE and Co KG
Original Assignee
Dehn and Soehne GmbH and Co KG
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 Dehn and Soehne GmbH and Co KG filed Critical Dehn and Soehne GmbH and Co KG
Publication of EP1961088A1 publication Critical patent/EP1961088A1/fr
Application granted granted Critical
Publication of EP1961088B1 publication Critical patent/EP1961088B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel

Definitions

  • the invention relates to an encapsulated, pressure-resistant running, non-hermetically sealed high-performance spark gap with two spaced main electrodes, a metallic outer housing, a gas or plasma cooling space surrounded by the outer housing and preferably frontally arranged electrical connection contacts for the main electrodes according to the preamble of patent claim 1.
  • surge arresters on the basis of spark gaps according to the prior art, these are designed to be encapsulated in applications in the low-voltage range in order to avoid the environment-threatening blowing out of hot or even ionized gases.
  • the arresters are provided with additional triggering devices.
  • a trigger device requires isolation of the additional, generally loaded with high voltage further electrode.
  • the additional expenditure of space and the additional insulation materials also lead to a further limitation of the performance of such realized arrester.
  • the potential of the ignition electrode is likewise supplied via the pressure-resistant metallic sheath to the spark gap.
  • the local pressure-resistant jacket is made of one piece and it is used for the preparation of a simple forming process.
  • the waiver of an insulated implementation of the ignition potential leads in this variant, however, to an additional burden of insulation in the interior of the spark gap, since both electrodes must be isolated not only against each other, but also with respect to the entire housing.
  • the complex and voltage-resistant insulation in particular, the heat output from the spark gap This leads to an increased thermal load on the insulating parts, to long cooling times and to an enormous limitation of the space available for the spark gap. All of these disadvantages ultimately limit the performance of the spark gap.
  • the object of the invention is achieved by a spark gap according to the feature combination according to claim 1, wherein the dependent claims represent at least expedient refinements and developments.
  • the encapsulated, pressure-resistant executed, non-hermetically sealed high-performance spark gap with two spaced opposite main electrodes, a metallic outer housing, a gas or plasma cooling space surrounded by the outer housing and preferably frontally arranged electrical connection contacts for the main electrodes has a Lichtbogenbrenn- and propagation space, which extends between the main electrodes.
  • This arc combustion and propagation space is designed to be split in its transverse direction, wherein means for pressure-dependent connection of the subspaces are arranged in the division region.
  • transverse bottom in the arc firing and propagation space, which has predetermined breaking points.
  • the transverse bottom may have one or more valves which open automatically upon pressure increase, so that the two subspaces reach each other in pressure-compensating communication and ultimately the gas is able to enter the gas or plasma cooling space.
  • the transverse bottom provided in the arc firing and propagation space can also have at least one bore of small diameter and / or slots, which oppose the gas with an insurmountable flow resistance.
  • a closure plug can be used, which is pressed out of the bore at pressure increase and this completely releases.
  • the transverse bottom can be part of a hollow body of a conductive, gas-emitting material radially enclosing the arc combustion chamber.
  • This transverse bottom can be used in the above-mentioned hollow body of conductive, gas-emitting material.
  • the cooling space of a coaxial, cup-shaped arrangement wherein one of the main electrodes is formed as a hollow cylindrical Ausblaselektrode and extends into the cup-shaped arrangement.
  • the cup-shaped arrangement has pressure compensation Openings on.
  • the blow-out electrode is connected to the cross-section means at its upper side facing towards the counter-electrode, and the underside of the blow-off electrode comprises lateral gas outlet openings which lead to the cooling space.
  • the aforesaid transverse dividing means may be embodied as a transverse bottom which can be inserted into the open-topped section of the hollow-cylindrical discharge electrode. As with the embodiments described above, this transverse bottom can comprise predetermined breaking points, a valve or a plug which dissolves when the pressure rises.
  • the figure here shows a schematic sectional view of a high-performance spark gap, which is pressure-resistant and comprises two spaced, opposite main electrodes and a metallic outer housing.
  • a first main electrode 2 and an opposite second main electrode 3 are located within the metallic outer housing 1 .
  • the main electrodes 2 and 3 are followed by electrical connection contacts 5 and 6.
  • At least one of the main electrodes (main electrode 3 in the example shown) is fixed in an insulated manner in the outer housing 1.
  • a trigger electrode 12 which is in communication with an insulated terminal contact 13.
  • the arc combustion chamber 7.1 is bounded by a hollow body 34 both radially and in the axial direction.
  • This hollow body 34 may be made of a conductive, gas-emitting material, for. B. from POM, but also consist of a semiconductive or conductive material.
  • the hollow body 34 has a constriction or a closed bottom 40, which completely or partially separates the cavity of the arc channel 7.1 of the underlying combustion and propagation space 7.2.
  • an opening 41 is located in the bottom 40, which can be closed by a plug, not shown, with pressure increase in the space 7.1, the plug leaves the hole or opening 41 and the passage to the room 7.2 releases.
  • the main electrode 2 is designed as a discharge electrode 9 with lateral gas outlet openings 11.
  • the cooling space 4 encloses radially a coaxial cup-shaped arrangement 8, which forms a substantially meandering flow channel for pressure equalization.
  • Pressure compensation openings 10 are located at the lower end of the illustrated spark gap, in the form of exemplary annular gaps.
  • the height of the bottom 40 is small compared to the height of the entire gas-emitting part 34 and is approximately in the range of 0.2 mm to 2 mm.
  • This floor 40 may be closed or provided with a bore or slots.
  • the bottom and the gas-emitting part 34 may be formed in one piece, but also in two pieces.
  • the floor must not consist of the same material as the gas-emitting part 34, but may have a corresponding specification in view of the intended breaking properties.
  • the bottom 40 of the part 34 is due to the pressure development in the space 7.1 the duct towards the lower electrode 2; 9 free, so that then the full capacity of the spark gap is available.
  • This release of the feedthrough channel can also be reversibly, d.
  • a plurality of differently responsive predetermined breaking points of the soil can be provided, so that a need-based opening of the flow channel, d. H. the connection of the rooms 7.1 and 7.2 sets.
  • valve function The above-described, reversible, time-limited embodiment with respect to release of the feed-through channel is to be understood as a pressure-dependent valve function.
  • This valve function is in no way equated with a burst protection, which consists of closed Löschrohrableitern, z. B. with ball and spring function is already known. With the valve function, provision is made of a demand-oriented performance of the spark gap at different loads.

Landscapes

  • Spark Plugs (AREA)
  • Plasma Technology (AREA)
  • Laminated Bodies (AREA)
EP07847653A 2007-01-04 2007-12-03 Éclateur à haute puissance, étanche de manière non hermétique, encapsulé et résistant à la pression Not-in-force EP1961088B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007001090 2007-01-04
DE102007015932A DE102007015932A1 (de) 2007-01-04 2007-04-02 Gekapselte, druckfest ausgeführte, nicht hermetisch dichte Hochleistungsfunkenstrecke
PCT/EP2007/063142 WO2008080723A1 (fr) 2007-01-04 2007-12-03 Éclateur à haute puissance, étanche de manière non hermétique, encapsulé et résistant à la pression

Publications (2)

Publication Number Publication Date
EP1961088A1 true EP1961088A1 (fr) 2008-08-27
EP1961088B1 EP1961088B1 (fr) 2009-08-26

Family

ID=39092533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07847653A Not-in-force EP1961088B1 (fr) 2007-01-04 2007-12-03 Éclateur à haute puissance, étanche de manière non hermétique, encapsulé et résistant à la pression

Country Status (5)

Country Link
EP (1) EP1961088B1 (fr)
CN (1) CN101606287B (fr)
AT (1) ATE441232T1 (fr)
DE (2) DE102007015932A1 (fr)
WO (1) WO2008080723A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013216960B4 (de) 2013-08-26 2023-04-27 Phoenix Contact Gmbh & Co. Kg Funkenstrecke mit Alterungsdetektor und Verfahren zur Messung der Alterung einer Funkenstrecke
DE102015115550B4 (de) * 2015-09-15 2018-07-12 Phoenix Contact Gmbh & Co. Kg Überspannungsableiter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001651A (en) * 1975-05-05 1977-01-04 Mcgraw-Edison Company Station lightning arrester with dual rupture diaphragms for gas pressure release
US4663692A (en) * 1985-06-27 1987-05-05 Westinghouse Electric Corp. Electrical surge arrester and disconnector
ATE106172T1 (de) 1987-08-28 1994-06-15 Eev Ltd Funkenstreckenvorrichtung.
AT405112B (de) * 1997-02-12 1999-05-25 Felten & Guilleaume Ag Oester Überspannungsableiteinrichtung
DE19817063C2 (de) * 1998-04-17 2001-08-23 Proepster J Gmbh Überspannungsschutzelement mit Lichtbogenwanderung
DE19845889B4 (de) * 1998-10-06 2007-03-01 Dehn + Söhne GmbH + Co KG Funkenstreckenanordnung
DE10008764A1 (de) 1999-03-04 2000-09-28 Phoenix Contact Gmbh & Co Überspannungsschutzeinrichtung
DE10018012B4 (de) 2000-02-22 2005-02-24 Dehn + Söhne Gmbh + Co. Kg Druckfest gekapselte Funkenstreckenanordnung zum Ableiten von schädlichen Störgrößen durch Überspannungen
DE10025239C2 (de) * 2000-05-22 2002-06-27 Dehn & Soehne Teil- oder vollgekapselte Funkenstreckenableiter
DE10164025B4 (de) 2001-08-21 2005-08-25 Dehn + Söhne Gmbh + Co. Kg Gekapselter, Netzfolgestrom begrenzender Überspannungsableiter auf Funkenstreckenbasis
DE102005024658B4 (de) * 2005-05-30 2007-02-15 Dehn + Söhne Gmbh + Co. Kg Gekapselte, druckfest ausgeführte, nicht hermetisch dichte, rotationssymmetrische Hochleistungsfunkenstrecke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008080723A1 *

Also Published As

Publication number Publication date
EP1961088B1 (fr) 2009-08-26
WO2008080723A1 (fr) 2008-07-10
CN101606287A (zh) 2009-12-16
ATE441232T1 (de) 2009-09-15
DE102007015932A1 (de) 2008-07-10
CN101606287B (zh) 2012-09-05
DE502007001394D1 (de) 2009-10-08

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