EP1865517A3 - Feedthrough insulator for electrical transformers - Google Patents

Feedthrough insulator for electrical transformers Download PDF

Info

Publication number
EP1865517A3
EP1865517A3 EP07109028A EP07109028A EP1865517A3 EP 1865517 A3 EP1865517 A3 EP 1865517A3 EP 07109028 A EP07109028 A EP 07109028A EP 07109028 A EP07109028 A EP 07109028A EP 1865517 A3 EP1865517 A3 EP 1865517A3
Authority
EP
European Patent Office
Prior art keywords
electrical
insulating
metallic
epoxy resin
arms
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.)
Withdrawn
Application number
EP07109028A
Other languages
German (de)
French (fr)
Other versions
EP1865517A2 (en
Inventor
Silvio Dal Lago
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.)
ABB Schweiz AG
Original Assignee
Comem SpA
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 Comem SpA filed Critical Comem SpA
Publication of EP1865517A2 publication Critical patent/EP1865517A2/en
Publication of EP1865517A3 publication Critical patent/EP1865517A3/en
Withdrawn legal-status Critical Current

Links

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
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
    • 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
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Installation Of Bus-Bars (AREA)
  • Insulating Bodies (AREA)

Abstract

A feedthrough insulator (10) for electrical transformers, comprising an insulating body (18), which includes an outer portion (14), to be arranged in air, coupled with an inner portion (15) in the electrical transformer tank, in which the outer and inner insulating portions (14, 15) are crossed axially by a metallic tie rod (11), which acts as an electrical conductor. In particular, the outer insulating portion (14) has a series of fins (17), positioned close together and suitably sized, in order to obtain high dielectric characteristics; moreover, at least one part of the entire insulating body (18) has a combined insulating coating, formed from the coupling of a layer of silicon, covering the underlying epoxy resin, which, in turn, surrounds the electrical conductor (11). Inside the epoxy resin a metallic screen (19) is also embedded, provided with arms (20), which has the dual purpose of screening the metallic attachment components and the support base (21), for example on the tank of the transformer, and of being used as condenser for the capacitive intakes, consisting of the aforementioned arms (20).
EP07109028A 2006-06-05 2007-05-28 Feedthrough insulator for electrical transformers Withdrawn EP1865517A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI20060166 ITVI20060166A1 (en) 2006-06-05 2006-06-05 THROUGH INSULATOR FOR ELECTRIC TRANSFORMERS

Publications (2)

Publication Number Publication Date
EP1865517A2 EP1865517A2 (en) 2007-12-12
EP1865517A3 true EP1865517A3 (en) 2009-05-06

Family

ID=38328618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07109028A Withdrawn EP1865517A3 (en) 2006-06-05 2007-05-28 Feedthrough insulator for electrical transformers

Country Status (5)

Country Link
EP (1) EP1865517A3 (en)
BR (1) BRPI0701670A (en)
IT (1) ITVI20060166A1 (en)
RU (1) RU2455717C2 (en)
UA (1) UA91525C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466441A (en) * 2008-12-18 2010-06-23 Tyco Electronics Ltd Uk Electrical current feed-through bush with air gap
EP2276040B1 (en) 2009-07-15 2017-03-01 ABB Research LTD A device for electric connection, a method for producing such a device, and an electric installation
EP2276041B1 (en) * 2009-07-15 2013-09-25 ABB Research Ltd. A device for electric connection and an electric installation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02148627A (en) * 1988-11-30 1990-06-07 Meidensha Corp Bushing
WO1997032318A1 (en) * 1996-02-29 1997-09-04 Ramkiw Ab A high voltage insulator
US20020104679A1 (en) * 2001-02-02 2002-08-08 Krol Robert A. Apparatus bushing with silicone-rubber housing
WO2005006355A1 (en) * 2003-07-11 2005-01-20 Abb Research Ltd. Bushing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1503073A (en) * 1919-05-05 1924-07-29 Steinberger Louis Insulated connecter
US3646251A (en) * 1970-12-08 1972-02-29 Westinghouse Electric Corp Electrical bushing having stress-grading layer disposed within solid insulation including a ground layer term inated at each end with a layer of material having a voltage-dependent resistivity
GB2110479B (en) * 1981-09-21 1985-10-23 Raychem Corp Electrical bushing and method of manufacture thereof
US4500745A (en) * 1983-03-03 1985-02-19 Interpace Corporation Hybrid electrical insulator bushing
IT245076Y1 (en) * 1998-07-09 2002-03-19 Comem Spa PERFECTED PASS-THROUGH INSULATOR.
FR2786944B1 (en) * 1998-12-07 2003-09-19 Soule Materiel Electr IMPROVEMENTS IN ELECTRIC SWITCHING DEVICES FOR MEDIUM AND HIGH VOLTAGE
DE19926950A1 (en) * 1999-06-14 2000-12-21 Abb Research Ltd Cable end fittings
RU2173902C1 (en) * 1999-12-23 2001-09-20 Общество с ограниченной ответственностью ООО "Альфа-Энерго" Rod-type insulating supporting structure
US20050155786A1 (en) * 2001-02-02 2005-07-21 Krol Robert A. Apparatus bushing with silicone-rubber housing
ITMI20030678A1 (en) * 2003-04-07 2004-10-08 Cedaspe S P A INSULATOR FOR TRANSFORMERS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02148627A (en) * 1988-11-30 1990-06-07 Meidensha Corp Bushing
WO1997032318A1 (en) * 1996-02-29 1997-09-04 Ramkiw Ab A high voltage insulator
US20020104679A1 (en) * 2001-02-02 2002-08-08 Krol Robert A. Apparatus bushing with silicone-rubber housing
WO2005006355A1 (en) * 2003-07-11 2005-01-20 Abb Research Ltd. Bushing

Also Published As

Publication number Publication date
EP1865517A2 (en) 2007-12-12
RU2455717C2 (en) 2012-07-10
BRPI0701670A (en) 2008-02-19
RU2007120613A (en) 2008-12-10
UA91525C2 (en) 2010-08-10
ITVI20060166A1 (en) 2007-12-06

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