EP0887810A1 - Metallkappe für Verbundisolator - Google Patents

Metallkappe für Verbundisolator Download PDF

Info

Publication number
EP0887810A1
EP0887810A1 EP98401517A EP98401517A EP0887810A1 EP 0887810 A1 EP0887810 A1 EP 0887810A1 EP 98401517 A EP98401517 A EP 98401517A EP 98401517 A EP98401517 A EP 98401517A EP 0887810 A1 EP0887810 A1 EP 0887810A1
Authority
EP
European Patent Office
Prior art keywords
bore
fitting
shank
barrel
insulator
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
EP98401517A
Other languages
English (en)
French (fr)
Other versions
EP0887810B1 (de
Inventor
Jean-Luc 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 EP0887810A1 publication Critical patent/EP0887810A1/de
Application granted granted Critical
Publication of EP0887810B1 publication Critical patent/EP0887810B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H01B17/38—Fittings, e.g. caps; Fastenings therefor
    • H01B17/40—Cementless fittings

Definitions

  • the invention relates to the fixing of fittings on the ends of a tube. made of composite material (glass fibers / epoxy) and more particularly on ends of a hollow shell of electrical insulator with composite structure.
  • a fitting comprises a metal body, for example of an aluminum alloy, having a generally cylindrical bore forming a sleeve in which is inserted and glued one end of the barrel of the electrical insulator. She serves anchoring means for the electrical insulator.
  • the object of the invention is to propose a solution to obtain a improved fixing of a fitting on a hollow barrel of electrical insulator, in in particular a binding which does not present a risk of separation from insulator operating temperatures above 60 ° C.
  • the invention relates to a fitting for an insulator electric structure composite with a hollow barrel, comprising a body having a bore forming a sleeve for the barrel of the electrical insulator, characterized in that this bore has a substantially frustoconical wall which flares in from the opening to the bottom of the bore and which has a bulge annular towards the inside of the bore.
  • this fitting is hooped on the end of the barrel of the insulator by thermal shrinkage.
  • the fitting of the fitting on the end of the barrel is preferably reinforced with glue.
  • the fitting 1 is shown in an axial half-section longitudinal.
  • This fitting is intended to be fixed on one end of a barrel hollow in composite material of a composite electrical insulator.
  • a metal body 2 for example of an aluminum alloy, in which is machined a bore 3.
  • the bore 3 forms a sleeve intended to receive the end of the barrel which extends along the longitudinal axis 4 of the barrel.
  • the bore 3 has a wall 5 of substantially frustoconical shape which widens from the opening of the bore indicated by O towards the bottom of the bore indicated by F.
  • this wall 5 also has an annular bulge directed towards the inside of the bore.
  • the surface wall 5 complex of the bore is actually between a TR surface strictly frustoconical defined by the generator passing through points A and B and a strictly cylindrical surface CO defined by the generator passing through the points A and C, this cylindrical surface corresponding to the external surface cylindrical barrel 6 of the insulator.
  • the wall of the bore of the fitting according to the invention provides increased pull-out resistance due to of its frustoconical shape.
  • the annular bulge of the wall of the bore allows compared to a strictly frustoconical wall, to have a less constrained assembly and better distribution of stresses on the entire surface of the fitting / drum interface.
  • the complex surface of the wall of bore 3 is determined according to a finite element calculation method.
  • a finite element calculation method is implemented for example in the software 'ANSYS', version 5.2 sold by the company ANSYS Inc.
  • the temperatures assigned to the ring (T1) and to the tube (T2) are different and correspond to the temperatures used during the shrinking operation of the fitting on the insulator barrel.
  • T1 is greater than 60 ° C and T2 is less than or equal to room temperature.
  • T3 the temperature of two pieces is brought to a temperature T3 at least equal to the temperature of use of the insulator concerned.
  • the temperature T3 being lower than the temperature T1
  • the model ring tightens on the model tube which generates a certain deformation of the lower part of it.
  • the shape of the tube model in its lower part is then used to define by modeling the bulging frustoconical surface of the bore of the fitting such that at any temperature less than or equal to T3, there is a compression constraint at the interface tube / fitting uniformly distributed along this interface.
  • the manufacture of a composite electrical insulator with a fitting according to the invention is carried out as follows.
  • the hollow barrel is made for example by a known technique of filament winding of glass fibers impregnated with resin.
  • the filament winding is cut off and the ends of the section are machined to obtain a barrel 6 of insulator whose ends have a certain outside diameter.
  • Each fitting 1 is produced by molding, machining or the like in such a way that it has a bore 3 with a complex swollen surface as indicated above, the opening of the bore being however dimensioned to have a substantially larger diameter small than the outside diameter of the end of the barrel to which the fitting.
  • the fitting is heated until the opening of the bore thereof is sufficiently dilated to allow insertion of the end of the barrel.
  • the end of the barrel is glued.
  • the fitting tightens on the end of the barrel.
  • the fitting is therefore shrunk onto the barrel by thermal shrinkage.

Landscapes

  • Insulating Bodies (AREA)
  • Insulators (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Supports For Pipes And Cables (AREA)
  • Graft Or Block Polymers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
EP98401517A 1997-06-26 1998-06-22 Metallkappe für Verbundisolator Expired - Lifetime EP0887810B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9708009 1997-06-26
FR9708009A FR2765385B1 (fr) 1997-06-26 1997-06-26 Ferrure d'isolateur composite

Publications (2)

Publication Number Publication Date
EP0887810A1 true EP0887810A1 (de) 1998-12-30
EP0887810B1 EP0887810B1 (de) 2002-07-31

Family

ID=9508474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401517A Expired - Lifetime EP0887810B1 (de) 1997-06-26 1998-06-22 Metallkappe für Verbundisolator

Country Status (7)

Country Link
US (1) US6064010A (de)
EP (1) EP0887810B1 (de)
CN (1) CN1208939A (de)
AT (1) ATE221692T1 (de)
DE (1) DE69806862T2 (de)
ES (1) ES2179435T3 (de)
FR (1) FR2765385B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6326552B1 (en) * 1999-12-01 2001-12-04 Hubbel Incorporated Insulator end fitting with non-machined annular attachment flange
CA2349253C (en) * 2000-12-26 2009-11-17 S&C Electric Company Method and arrangement for providing a gas-tight housing joint
CN100341077C (zh) * 2004-07-09 2007-10-03 上海Mwb互感器有限公司 复合绝缘子的制造方法及其模具
JP4376174B2 (ja) * 2004-12-01 2009-12-02 日本碍子株式会社 ポリマーｓｐ碍子
CN105119033B (zh) * 2015-09-10 2016-11-09 四川九洲电器集团有限责任公司 一种软波导管及信号传输系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092976B (de) * 1959-10-13 1960-11-17 Licentia Gmbh Hochspannungsstuetzisolator aus keramischem Material mit einer Kappenarmatur
FR2069424A5 (de) * 1969-12-31 1971-09-03 Joslyn Mfg & Supply Co
FR2357993A1 (fr) * 1976-07-09 1978-02-03 Ceraver Isolateur electrique tubulaire, et procede de fabrication de celui-ci

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005297A (en) * 1972-10-18 1977-01-25 Westinghouse Electric Corporation Vacuum-type circuit interrupters having heat-dissipating devices associated with the contact structures thereof
FR2459398A1 (fr) * 1979-06-15 1981-01-09 Viennot Pierre Procede d'assujettissement de tiges en materiau isolant dans des ferrures d'accrochage et dispositif pour sa realisation
US4956525A (en) * 1989-06-05 1990-09-11 G & W Electric Company Electrical insulating bushing assembly, kit for providing same, and method of installing same
DE4421343A1 (de) * 1994-06-17 1995-12-21 Hoechst Ceram Tec Ag Hochspannungsisolator aus Keramik
DE19503324A1 (de) * 1995-02-02 1996-08-08 Hoechst Ceram Tec Ag Isolator mit Kittverbindung und Verfahren zu seiner Herstellung
JP2611689B2 (ja) * 1995-06-29 1997-05-21 日立化成工業株式会社 複合がいし
JP2616493B2 (ja) * 1995-06-29 1997-06-04 日立化成工業株式会社 複合がいし

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092976B (de) * 1959-10-13 1960-11-17 Licentia Gmbh Hochspannungsstuetzisolator aus keramischem Material mit einer Kappenarmatur
FR2069424A5 (de) * 1969-12-31 1971-09-03 Joslyn Mfg & Supply Co
FR2357993A1 (fr) * 1976-07-09 1978-02-03 Ceraver Isolateur electrique tubulaire, et procede de fabrication de celui-ci

Also Published As

Publication number Publication date
DE69806862T2 (de) 2003-03-20
FR2765385B1 (fr) 2003-12-05
US6064010A (en) 2000-05-16
FR2765385A1 (fr) 1998-12-31
EP0887810B1 (de) 2002-07-31
DE69806862D1 (de) 2002-09-05
CN1208939A (zh) 1999-02-24
ES2179435T3 (es) 2003-01-16
ATE221692T1 (de) 2002-08-15

Similar Documents

Publication Publication Date Title
EP2021189B1 (de) Speichenrad
EP2469355B1 (de) Zusammenbau eines Teils, das keinen Plastikbereich enthält
FR2768271A1 (fr) Procede de fabrication d'un rotor pour machine electrique rotative, rotor et machine concernes
EP0799722A1 (de) Rad für Motorfahrzeuge und Verfahren zu dessen Herstellung
EP0887810A1 (de) Metallkappe für Verbundisolator
EP2774777A1 (de) Rad eines Fahrrads, und sein Herstellungsverfahren
CA1264529A (fr) Methode d'assemblage d'un tube mince dans une plaque ou un manchon
EP1015301A1 (de) Fahrradgabel
EP3194104A1 (de) Verfahren zur anordnung von zwei blechkomponenten wie etwa fahrzeugkarosseriekomponenten
EP0195474A2 (de) Flanschbüchsenlager und sein Herstellungsverfahren
EP0028978B1 (de) Bedienungsstange oder dgl. mit einem Hohlkörper
FR2657658A1 (fr) Procede d'assemblage de materiaux et organe de rivetage pour sa mise en óoeuvre.
WO2016162633A1 (fr) Utilisation d'une bague de frettage étagée pour assembler un moteur d'assistance de direction dans un carter de direction
FR2688837A1 (fr) Palier coulissant muni d'une garniture interieure.
WO2015158983A1 (fr) Assemblage riveté et procédé de fabrication associé
FR2746708A1 (fr) Roue pour vehicules automobiles
EP1068926A1 (de) Verfahren zum Einbringen eines metallischen Rings in Verbundmaterial mit organischer Matrix und dadurch erhaltenes Bauteil
WO2010084286A1 (fr) Procede de fabrication d'une piece composite, et piece obtenue
FR2778624A1 (fr) Assemblage d'un pivot de fourche de bicyclette et d'une tete de fourche, procede de realisation de l'assemblage, et fourche le comportant
FR2684062A1 (fr) Fourche de bicyclette et procede de fabrication d'une telle fourche.
EP0558399B1 (de) Verfahren zum Verbinden einer Hülse mit einem Rohr und Rohr derart versehen mit einer Hülse
EP0234988A1 (de) Brennkammer für einen Treibsatz und deren Aufbau
FR2744939A1 (fr) Procede de fixation pour realiser la liaison entre une ame et un element d'adaptation d'extremite metallique dans un isolateur en materiau polymere
FR2541501A1 (fr) Procede pour fixer un manchon metallique malleable sur un jonc en materiau composite
FR2566294A1 (fr) Procede et dispositif perfectionnes pour l'assemblage d'un tube et d'une tole

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE ES GB IT LI SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990622

AKX Designation fees paid

Free format text: AT CH DE ES GB IT LI SE

17Q First examination report despatched

Effective date: 20010328

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES GB IT LI SE

REF Corresponds to:

Ref document number: 221692

Country of ref document: AT

Date of ref document: 20020815

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: CABINET ROLAND NITHARDT CONSEILS EN PROPRIETE INDU

REF Corresponds to:

Ref document number: 69806862

Country of ref document: DE

Date of ref document: 20020905

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20021010

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2179435

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030506

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040528

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20040602

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040603

Year of fee payment: 7

Ref country code: SE

Payment date: 20040603

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040604

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040615

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050622

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050622

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050623

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050630

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060103

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050622

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050623