EP0419386A1 - Überspannungsableiter mit visueller Fehleranzeigevorrichtung - Google Patents

Überspannungsableiter mit visueller Fehleranzeigevorrichtung Download PDF

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Publication number
EP0419386A1
EP0419386A1 EP90420416A EP90420416A EP0419386A1 EP 0419386 A1 EP0419386 A1 EP 0419386A1 EP 90420416 A EP90420416 A EP 90420416A EP 90420416 A EP90420416 A EP 90420416A EP 0419386 A1 EP0419386 A1 EP 0419386A1
Authority
EP
European Patent Office
Prior art keywords
envelope
bracelet
arrester device
indicator
detector
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
EP90420416A
Other languages
English (en)
French (fr)
Other versions
EP0419386B1 (de
Inventor
Dominique Mercier
Louis Mainier
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.)
INDUSTRIELLE DE MATERIEL ELECTRIQUE SIMEL Ste
Original Assignee
INDUSTRIELLE DE MATERIEL ELECTRIQUE SIMEL Ste
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 INDUSTRIELLE DE MATERIEL ELECTRIQUE SIMEL Ste filed Critical INDUSTRIELLE DE MATERIEL ELECTRIQUE SIMEL Ste
Publication of EP0419386A1 publication Critical patent/EP0419386A1/de
Application granted granted Critical
Publication of EP0419386B1 publication Critical patent/EP0419386B1/de
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
    • H01T1/12—Means structurally associated with spark gap for recording operation thereof
    • 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

Definitions

  • lightning arresters intended for the protection of overhead electrical networks at medium voltage most often use ceramic pellets of silicon carbide or zinc oxide, stacked under pressure between two electrodes of connection fixed at the ends of an insulating containment envelope.
  • the surge arresters are provided from place to place throughout the envisaged network, they should be made to include a visual fault indicator, suitable for allowing easy visual detection of the surge arrester (s) which are faulty and must therefore actually be replaced.
  • the invention mainly intends to remedy, by taking advantage of the pressure of the gases generated by the short-circuiting of the ceramic pellets under the effect of an excessive overload.
  • the arrester device according to the invention is defined in claim 1.
  • the invention consists in mounting on the insulating envelope, made of a deformable material, a detector bracelet which is retained in place by mechanical means arranged so as to yield, allowing the expulsion of said bracelet, under the effect swelling of the envelope following the pressure of the gases generated by the short-circuiting of the ceramic pellets.
  • the detector bracelet comprises two parts with an arc-shaped profile which, at at least one of their ends, are assembled to one another using a member deformable, the longitudinal edges of these parts being provided with edges capable of bearing against the outer faces of two adjacent fins of the insulating envelope.
  • a lightning arrester device of the type mentioned at the beginning of the present document, that is to say comprising, inside an insulating envelope 2, a stack of ceramic pellets maintained under axial pressure between two electrodes terminals of which we see in 3 a and 3 b the electrical connection and fixing members.
  • the casing 2 provided in the usual manner with projecting fins 4 intended to avoid the formation of an electric arc between the members 3 a and 3 b , is here made of a flexible synthetic material suitable to deform more or less elasticly.
  • the device 1 is associated with an ejectable detection bracelet 5, advantageously made of a synthetic material having a very conspicuous color (bright red for example), different from that of the deformable envelope 2.
  • this bracelet 5 is constituted by a single piece shaped so as to present two half-collars 6 with a semi-circular profile, the radius of this profile being substantially equal to the outside radius of the fins 4 of the envelope 2.
  • the two half -clamps 6 are joined to each other at a transverse zone 7, advantageously provided thinned in order to act as a hinge allowing by deformation the opening of the bracelet 5.
  • each semi-collar 6 is integral with a lateral ear 8, perforated at 8 a for the insertion of an assembly rivet 9.
  • This rivet 9 is made of an elastically deformable synthetic material.
  • the central barrel ends at one of its ends by a cylindrical head, opposite by a shoulder whose conical or frustoconical profile is suitable for facilitate its forced introduction into the corresponding perforation 8 a , the ears 8 thus being assembled to one another by mutual approximation (arrow F).
  • each half-collar 6 are provided with flanges 10 and it is understood under these conditions that if the height (or transverse width) of the bracelet 5 is substantially equal to the mutual spacing of two adjacent fins 4 of the insulating envelope 2, said bracelet 5 is capable of being easily fixed at mid-height on this envelope in the manner illustrated in FIG. 1. Once in place, the rivet 9 opposes any unexpected opening of the bracelet 5, thereby ensuring that it is retained on the insulating envelope 2.
  • the surveillance personnel are thus able to visually detect the surge arresters which no longer include the bracelet 5 and which must therefore be replaced.
  • the bracelet 5 can be produced in any other way than that described above by way of example; it can in particular be constituted by several separate parts, assembled and maintained using one or more deformable or breakable members.
  • a member is in particular capable of being made of metal, so as to melt under the effect of the arc generated between the two electrodes during a short circuit.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermistors And Varistors (AREA)
EP19900420416 1989-09-22 1990-09-20 Überspannungsableiter mit visueller Fehleranzeigevorrichtung Expired - Lifetime EP0419386B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8912670 1989-09-22
FR8912670A FR2652457B1 (fr) 1989-09-22 1989-09-22 Dispositif parafoudre a indicateur visuel de defaut.

Publications (2)

Publication Number Publication Date
EP0419386A1 true EP0419386A1 (de) 1991-03-27
EP0419386B1 EP0419386B1 (de) 1994-01-05

Family

ID=9385880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900420416 Expired - Lifetime EP0419386B1 (de) 1989-09-22 1990-09-20 Überspannungsableiter mit visueller Fehleranzeigevorrichtung

Country Status (4)

Country Link
EP (1) EP0419386B1 (de)
DE (1) DE69005760T2 (de)
ES (1) ES2049956T3 (de)
FR (1) FR2652457B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521805A1 (de) * 1991-07-03 1993-01-07 FERRAZ Société Anonyme Fehleranzeige für einen Blitzableiter
FR2683684A1 (fr) * 1991-11-13 1993-05-14 Asea Brown Boveri Parafoudre comportant un dispositif d'indication de defaut.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290547A (en) * 1964-10-19 1966-12-06 Mc Graw Edison Co Pressure relief and failure indicating means for arrester
DE1513313A1 (de) * 1965-09-15 1970-01-02 Licentia Gmbh Anzeigevorrichtung,insbesondere fuer UEberspannungs-Sicherungen
DE2354459A1 (de) * 1973-10-31 1975-05-15 Transformatoren Union Ag Ueberspannungsableiter mit ueberdruckentlastungseinrichtung und -anzeige
DE2655557A1 (de) * 1976-12-08 1978-06-15 Transformatoren Union Ag Ueberspannungsableiter
FR2603418A1 (fr) * 1986-08-28 1988-03-04 Ferraz Indicateur pour la signalisation de la mise en court-circuit d'un parafoudre

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290547A (en) * 1964-10-19 1966-12-06 Mc Graw Edison Co Pressure relief and failure indicating means for arrester
DE1513313A1 (de) * 1965-09-15 1970-01-02 Licentia Gmbh Anzeigevorrichtung,insbesondere fuer UEberspannungs-Sicherungen
DE2354459A1 (de) * 1973-10-31 1975-05-15 Transformatoren Union Ag Ueberspannungsableiter mit ueberdruckentlastungseinrichtung und -anzeige
DE2655557A1 (de) * 1976-12-08 1978-06-15 Transformatoren Union Ag Ueberspannungsableiter
FR2603418A1 (fr) * 1986-08-28 1988-03-04 Ferraz Indicateur pour la signalisation de la mise en court-circuit d'un parafoudre

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0521805A1 (de) * 1991-07-03 1993-01-07 FERRAZ Société Anonyme Fehleranzeige für einen Blitzableiter
FR2678764A1 (fr) * 1991-07-03 1993-01-08 Ferraz Indicateur de defaut pour un parafoudre.
FR2683684A1 (fr) * 1991-11-13 1993-05-14 Asea Brown Boveri Parafoudre comportant un dispositif d'indication de defaut.

Also Published As

Publication number Publication date
DE69005760T2 (de) 1994-04-28
DE69005760D1 (de) 1994-02-17
FR2652457A1 (fr) 1991-03-29
EP0419386B1 (de) 1994-01-05
ES2049956T3 (es) 1994-05-01
FR2652457B1 (fr) 1993-12-24

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