EP0886287A3 - Bushing insulator - Google Patents

Bushing insulator Download PDF

Info

Publication number
EP0886287A3
EP0886287A3 EP98660046A EP98660046A EP0886287A3 EP 0886287 A3 EP0886287 A3 EP 0886287A3 EP 98660046 A EP98660046 A EP 98660046A EP 98660046 A EP98660046 A EP 98660046A EP 0886287 A3 EP0886287 A3 EP 0886287A3
Authority
EP
European Patent Office
Prior art keywords
primary current
current conductor
bushing insulator
cast resin
cast
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
EP98660046A
Other languages
German (de)
French (fr)
Other versions
EP0886287A2 (en
EP0886287B1 (en
Inventor
Vesa Virtanen
Tapani Tiitola
Jorma Jokinen
Esa Virtanen
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 Technology AG
Original Assignee
ABB Transmit Oy
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 ABB Transmit Oy filed Critical ABB Transmit Oy
Publication of EP0886287A2 publication Critical patent/EP0886287A2/en
Publication of EP0886287A3 publication Critical patent/EP0886287A3/en
Application granted granted Critical
Publication of EP0886287B1 publication Critical patent/EP0886287B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • 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
    • H01B17/005—Insulators structurally associated with built-in electrical equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H2085/0225—Means for preventing discharge, e.g. corona ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Fuses (AREA)
  • Transformers For Measuring Instruments (AREA)

Abstract

A bushing insulator or other corresponding component, comprising an end-to-end primary current conductor (1) and a frame (2) cast of cast resin (3) around the primary current conductor. In accordance with the invention, the primary current conductor (1) comprises a fuse (4) which is at least partly left within the cast resin (3) when casting the frame (2). The part of the fuse (4) remaining within the cast resin (3) is encapsulated in a layer (6) of rubber or other corresponding material which in turn is encapsulated in a semiconducting layer (5).
EP19980660046 1997-05-19 1998-05-18 Bushing insulator Expired - Lifetime EP0886287B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI972131A FI116328B (en) 1997-05-19 1997-05-19 Throughput insulator or voltage transformer
FI972131 1997-05-19

Publications (3)

Publication Number Publication Date
EP0886287A2 EP0886287A2 (en) 1998-12-23
EP0886287A3 true EP0886287A3 (en) 1999-09-22
EP0886287B1 EP0886287B1 (en) 2003-11-12

Family

ID=8548876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980660046 Expired - Lifetime EP0886287B1 (en) 1997-05-19 1998-05-18 Bushing insulator

Country Status (3)

Country Link
EP (1) EP0886287B1 (en)
DE (1) DE69819605T2 (en)
FI (1) FI116328B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666992A (en) * 1970-10-22 1972-05-30 Allis Chalmers Mfg Co Protective means for distribution transformer
US3678432A (en) * 1971-04-26 1972-07-18 Gen Electric Vented fuse module for underground power cable system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666992A (en) * 1970-10-22 1972-05-30 Allis Chalmers Mfg Co Protective means for distribution transformer
US3678432A (en) * 1971-04-26 1972-07-18 Gen Electric Vented fuse module for underground power cable system

Also Published As

Publication number Publication date
FI972131A (en) 1998-11-20
DE69819605T2 (en) 2004-09-23
EP0886287A2 (en) 1998-12-23
DE69819605D1 (en) 2003-12-18
EP0886287B1 (en) 2003-11-12
FI972131A0 (en) 1997-05-19
FI116328B (en) 2005-10-31

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