EP0613156A1 - Isolator - Google Patents

Isolator Download PDF

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Publication number
EP0613156A1
EP0613156A1 EP94400384A EP94400384A EP0613156A1 EP 0613156 A1 EP0613156 A1 EP 0613156A1 EP 94400384 A EP94400384 A EP 94400384A EP 94400384 A EP94400384 A EP 94400384A EP 0613156 A1 EP0613156 A1 EP 0613156A1
Authority
EP
European Patent Office
Prior art keywords
porcelain
insulator
ferrule
polyurethane
insulator according
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.)
Ceased
Application number
EP94400384A
Other languages
English (en)
French (fr)
Inventor
Jean-Luc C/O Gec Alsthom T & D Sa Bessede
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D SA
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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0613156A1 publication Critical patent/EP0613156A1/de
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/38—Fittings, e.g. caps; Fastenings therefor

Definitions

  • the present invention relates to an insulator, and in particular an insulating column intended to enclose the breaking chamber of a high voltage circuit breaker.
  • insulators of this type such as that shown in partial half-section in FIG. 1, comprise a cylindrical casing 1 of porcelain and, in general at each of its ends, a ferrule 2 of aluminum.
  • the ferrule is fixed to the porcelain by means of a cement 3 placed between the outer wall of the envelope and the inner wall of the ferrule.
  • the thickness of this cement is of the order of a centimeter.
  • the exposed parts 6, 7 of the cement are covered with a silicone seal.
  • drying the cement requires placing the insulator in an oven for several tens of hours, generally 72 hours, which results in energy expenditure and requires investments for storage.
  • An object of the present invention is to provide a more economical insulator, both in terms of the price of the materials to be used and that of the labor time to be devoted to manufacturing.
  • Another object of the invention is to provide an insulator having better resistance to vibrations, in particular to earthquakes.
  • the invention relates to an insulator comprising a cylindrical porcelain shell and at least one metal end ferrule, characterized in that the ferrule is fixed to the porcelain by means of a layer of polyurethane.
  • FIG. 1 The elements common to FIG. 1 and to FIG. 2 have been given the same reference numbers.
  • connection between the porcelain shell and the metal shell, preferably aluminum, is carried out by means of a layer 8 of polyurethane.
  • the implementation is carried out very easily by filling the space between the shell and the porcelain, suitably centered, with the polyurethane in pasty form; hot polymerization is then carried out.
  • an adhesion primer is applied to the different parts in order to facilitate the adhesion of the polyurethane to the ceramic and the aluminum.
  • the polyurethane can be loaded with mineral powder (silica, alumina, dolomite, etc.) at a percentage making it possible to obtain, for the connection between the porcelain and the ferrule, the desired elastic modulus which can be between 1 and 25,000 megapascals.
  • mineral powder silicon, alumina, dolomite, etc.
  • the manufacture of the insulator of the invention requires only a sealing time of one hour, instead of three days, hence a considerable saving on the total time of manufacture and the storage of in progress.
  • the insulator of the invention thanks to the plasticity of the sealing material, is more resistant to vibrations and earthquakes than the insulators sealed with cement.
  • the invention applies to the production of all insulators for all voltages, in particular high and very high.

Landscapes

  • Insulating Bodies (AREA)
  • Insulators (AREA)
EP94400384A 1993-02-26 1994-02-23 Isolator Ceased EP0613156A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9302222A FR2702081B1 (fr) 1993-02-26 1993-02-26 Isolateur.
FR9302222 1993-02-26

Publications (1)

Publication Number Publication Date
EP0613156A1 true EP0613156A1 (de) 1994-08-31

Family

ID=9444454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400384A Ceased EP0613156A1 (de) 1993-02-26 1994-02-23 Isolator

Country Status (3)

Country Link
EP (1) EP0613156A1 (de)
CA (1) CA2116402A1 (de)
FR (1) FR2702081B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727561A1 (fr) * 1994-11-30 1996-05-31 Sediver Isolateur electrique, procede de fabrication d'un tel isolateur et dispositif pour la mise en oeuvre du procede
DE19503324A1 (de) * 1995-02-02 1996-08-08 Hoechst Ceram Tec Ag Isolator mit Kittverbindung und Verfahren zu seiner Herstellung
CN105161229A (zh) * 2015-09-29 2015-12-16 正泰电气股份有限公司 适合额定电压24kV及以下电压等级使用的触臂套管

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631152A1 (fr) * 1988-05-03 1989-11-10 Ceralep Isolateur ceramique pour support de barre ou de sectionneur
DE3911285C1 (de) * 1989-04-07 1990-05-03 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2631152A1 (fr) * 1988-05-03 1989-11-10 Ceralep Isolateur ceramique pour support de barre ou de sectionneur
DE3911285C1 (de) * 1989-04-07 1990-05-03 Leopold Kostal Gmbh & Co Kg, 5880 Luedenscheid, De

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727561A1 (fr) * 1994-11-30 1996-05-31 Sediver Isolateur electrique, procede de fabrication d'un tel isolateur et dispositif pour la mise en oeuvre du procede
EP0720181A1 (de) * 1994-11-30 1996-07-03 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Elektrischer Isolator, Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens
US5973272A (en) * 1994-11-30 1999-10-26 Sediver Societe Europeene D'isolateurs En Verre Et Composite Composite insulator with insulating tapered rings providing a transition surface between endpieces and support inserted with the endpieces, a method of manufacturing such an insulator, and apparatus for implementing the method
DE19503324A1 (de) * 1995-02-02 1996-08-08 Hoechst Ceram Tec Ag Isolator mit Kittverbindung und Verfahren zu seiner Herstellung
CN105161229A (zh) * 2015-09-29 2015-12-16 正泰电气股份有限公司 适合额定电压24kV及以下电压等级使用的触臂套管

Also Published As

Publication number Publication date
CA2116402A1 (fr) 1994-08-27
FR2702081A1 (fr) 1994-09-02
FR2702081B1 (fr) 1995-05-12

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